NopSCADlib

An ever expanding library of parts modelled in OpenSCAD useful for 3D printers and enclosures for electronics, etc.

It contains lots of vitamins (the RepRap term for non-printed parts), some general purpose printed parts and some utilities. There are also Python scripts to generate Bills of Materials (BOMs), STL files for all the printed parts, DXF files for CNC routed parts in a project and a manual containing assembly instructions and exploded views by scraping markdown embedded in OpenSCAD comments, see scripts.

A simple example project can be found here.

For more examples of what it can make see the gallery.

The license is GNU General Public License v3.0, see COPYING.

See usage for requirements, installation instructions and a usage guide.

Table of Contents

Vitamins A-I	Vitamins J-Q	Vitamins R-Z	Printed	Utilities	Core Utilities
Axials	Jack	Rails	Box	Annotation	BOM
Ball_bearings	KP_pillow_blocks	Ring_terminals	Butt_box	Bezier	Clip
Batteries	LDRs	Rockers	Cable_grommets	Catenary	Global
Belts	LED_meters	Rod	Camera_housing	Dogbones	Polyholes
Blowers	LEDs	SCS_bearing_blocks	Carriers	Fillet	Rounded_rectangle
Bulldogs	Leadnuts	SK_brackets	Corner_block	Gears	Sphere
Buttons	Light_strips	SMDs	Door_hinge	Hanging_hole	Teardrops
Cable_strips	Linear_bearings	SSRs	Door_latch	Horiholes
Cameras	Magnets	Screws	Drag_chain	Layout
Circlips	Mains_sockets	Sealing_strip	Fan_guard	Maths
Components	Microswitches	Shaft_couplings	Fixing_block	Offset
DIP	Microview	Sheets	Flat_hinge	Quadrant
D_connectors	Modules	Spades	Foot	Round
Displays	Nuts	Spools	Handle	Rounded_cylinder
Extrusion_brackets	O_ring	Springs	PCB_mount	Rounded_polygon
Extrusions	Opengrab	Stepper_motors	PSU_shroud	Sector
Fans	PCB	Swiss_clips	Press_fit	Sweep
Fuseholder	PCBs	Toggles	Printed_box	Thread
Geared_steppers	PSUs	Transformers	Ribbon_clamp	Tube
Green_terminals	Panel_meters	Tubings	SSR_shroud
Hot_ends	Pillars	Variacs	Screw_knob
Hygrometer	Pin_headers	Veroboard	Socket_box
IECs	Pulleys	Washers	Strap_handle
Inserts		Wire
		Zipties

---

Axials

Axial components for PCBs.

vitamins/axials.scad Object definitions.

vitamins/axial.scad Implementation.

tests/axials.scad Code for this example.

Properties

Function	Description
ax_res_colour(type)	Body colour
ax_res_diameter(type)	Body diameter
ax_res_end_d(type)	End cap diameter
ax_res_end_l(type)	End cap length
ax_res_length(type)	Body length
ax_res_wattage(type)	Power rating
ax_res_wire(type)	Wire diameter

Modules

Module	Description
ax_res(type, value, tol = 5, pitch = 0)	Through hole axial resistor. If pitch is zero the minimum is used. If below the minimum the resistor is placed vertical.
wire_link(d, l, h = 1, tail = 3)	Draw a wire jumper link.

Vitamins

Qty	Module call	BOM entry
1	pcb(PERF60x40)	Perfboard 60 x 40mm
1	ax_res(res1_8, 1000)	Resistor 1000 Ohms 5% 0.125W
1	ax_res(res1_8, 2200, tol = 1)	Resistor 2200 Ohms 1% 0.125W
1	ax_res(res1_4, 39000, tol = 1)	Resistor 39000 Ohms 1% 0.25W
1	ax_res(res1_4, 47000)	Resistor 47000 Ohms 5% 0.25W
1	ax_res(res1_2, 8200)	Resistor 8200 Ohms 5% 0.5W
1	ax_res(res1_2, 8250, tol = 1)	Resistor 8250 Ohms 1% 0.5W
1	wire_link(0.8, 10.16)	Wire link 0.8mm x 0.4"

Top

---

Ball_bearings

Simple model of ball bearings with seals, the colour of which can be specified. If silver they are assumed to be metal and the part number gets a ZZ suffix. Any other colour is assumed to be rubber and the suffix is -2RS.

If a ball bearing has a child it is placed on its top surface, the same as nuts and washers, etc.

Also single bearing balls are modelled as just a silver sphere and a BOM entry.

vitamins/ball_bearings.scad Object definitions.

vitamins/ball_bearing.scad Implementation.

tests/ball_bearings.scad Code for this example.

Properties

Function	Description
bb_bore(type)	Internal diameter
bb_colour(type)	Shield colour, "silver" for metal
bb_diameter(type)	External diameter
bb_hub(type)	Inner rim thickness guesstimate
bb_name(type)	Part code without shield type suffix
bb_rim(type)	Outer rim thickness guesstimate
bb_width(type)	Width

Modules

Module	Description
ball_bearing(type)	Draw a ball bearing
bearing_ball(dia)	Draw a steel bearing ball

Vitamins

Qty	Module call	BOM entry
1	ball_bearing(BB608)	Ball bearing 608-2RS 8mm x 22mm x 7mm
1	ball_bearing(BB6200)	Ball bearing 6200-2RS 10mm x 30mm x 9mm
1	ball_bearing(BB6201)	Ball bearing 6201-2RS 12mm x 32mm x 10mm
1	ball_bearing(BB624)	Ball bearing 624-2RS 4mm x 13mm x 5mm
1	ball_bearing(BB6808)	Ball bearing 6808-2RS 40mm x 52mm x 7mm
1	ball_bearing(BBSMR95)	Ball bearing SMR95ZZ 5mm x 9mm x 2.5mm
6	bearing_ball(3)	Steel ball 3mm

Top

---

Batteries

Actually just single cells at the moment, shown here with mating contacts in place.

Note that the Lumintop LM34 has a built in charger with a USB socket and two LEDs.

The battery length includes its contacts and the origin is the centre of that length. As well as drawing the battery and contacts there are functions exposing enough information to make a battery box.

vitamins/batteries.scad Object definitions.

vitamins/battery.scad Implementation.

tests/batteries.scad Code for this example.

Properties

Function	Description
battery_colour(type)	Casing colour
battery_contact(type)	Contact type
battery_diameter(type)	Casing diameter
battery_led_positions(type)	LED positions for Lumintop
battery_length(type)	Total length including terminals
battery_neg_dia(type)	Negative terminal diameter
battery_pos_dia(type)	Positive terminal diameter
battery_pos_height(type)	Positive terminal height above the casing
battery_usb_offset(type)	USB connector offset from the top
contact_height(type)	Height of the flat part
contact_neg(type)	Negative spring height above the plate when compressed and the spring type
contact_pos(type)	Positive contact dimple height and top and bottom internal diameter
contact_tab_length(type)	Length of the tab
contact_tab_width(type)	Width of the tab
contact_thickness(type)	Thickness of the metal
contact_width(type)	Width of the flat part

Modules

Module	Description
battery(type)	Draw a battery
battery_contact(type, pos = true)	Draw a positive or negative battery contact for specified battery
battery_led_positions(type)	Position of the LEDs on a Lumintop

Vitamins

Qty	Module call	BOM entry
6	battery_contact(bcontact, false)	Battery negative contact
6	battery_contact(bcontact, true)	Battery positive contact
1	battery(AACELL)	Cell AA
1	battery(AAACELL)	Cell AAA
1	battery(CCELL)	Cell C
1	battery(DCELL)	Cell D
1	battery(LUMINTOP)	Cell LUMINTOP 18650 LION with charger
1	battery(S25R18650)	Cell Samsung 25R 18650 LION

Top

---

Belts

Models timing belt running over toothed or smooth pulleys and calculates an accurate length. Only models 2D paths, so not crossed belt core XY!

To make the back of the belt run against a smooth pulley on the outside of the loop specify a negative pitch radius.

By default the path is a closed loop but a gap length and position can be specified to make open loops. To draw the gap its XY position is specified by gap_pos. gap_pos.z can be used to specify a rotation if the gap is not at the bottom of the loop.

Individual teeth are not drawn, instead they are represented by a lighter colour.

vitamins/belts.scad Object definitions.

vitamins/belt.scad Implementation.

tests/belts.scad Code for this example.

Properties

Function	Description
belt_pitch(type)	Pitch in mm
belt_pitch_height(type)	Offset of the pitch radius from the tips of the teeth
belt_thickness(type)	Total thickness including teeth
belt_tooth_height(type)	Tooth height
belt_width(type)	Width in mm

Functions

Function	Description
belt_length(points, gap = 0)	Compute belt length given path and optional gap
belt_pitch_to_back(type)	Offset of the back from the pitch radius

Modules

Module	Description
belt(type, points, gap = 0, gap_pos = undef, belt_colour = grey(20)	Draw a belt path given a set of points and pitch radii where the pulleys are. Closed loop unless a gap is specified

Vitamins

Qty	Module call	BOM entry
1	belt(GT2x6, [ ... ])	Belt GT2 x 6mm x 128mm
2	belt(GT2x6, [ ... ], 80, [0, 0])	Belt GT2 x 6mm x 572mm
1	belt(T2p5x6, [ ... ])	Belt T2.5 x 6mm x 130mm
1	belt(T5x10, [ ... ])	Belt T5 x 10mm x 130mm
1	belt(T5x6, [ ... ])	Belt T5 x 6mm x 130mm
2	insert(F1BM3)	Heatfit insert M3
2	pulley(GT2x16_toothed_idler)	Pulley GT2 idler 16 teeth
4	pulley(GT2x20_toothed_idler)	Pulley GT2 idler 20 teeth
2	pulley(GT2x16_plain_idler)	Pulley GT2 idler smooth 9.63mm
2	pulley(GT2x20ob_pulley)	Pulley GT2OB 20 teeth
2	screw(M3_cs_cap_screw, 20)	Screw M3 cs cap x 20mm
4	screw(M3_grub_screw, 6)	Screw M3 grub x 6mm

Top

---

Blowers

Models of radial blowers.

vitamins/blowers.scad Object definitions.

vitamins/blower.scad Implementation.

tests/blowers.scad Code for this example.

Properties

Function	Description
blower_axis(type)	XY coordinates of the axle
blower_base(type)	Thickness of the base
blower_bore(type)	The air intake hole diameter
blower_depth(type)	Height
blower_exit(type)	The width of the exit port
blower_hub(type)	Rotor hub diameter
blower_hub_height(type)	Height of the rotor
blower_length(type)	Length of enclosing rectangle
blower_lug(type)	Height of the lugs
blower_screw(type)	The type of screws needed
blower_screw_hole(type)	Screw hole diameter
blower_screw_holes(type)	List of XY coordinates of the screw holes
blower_top(type)	Thickness of the top
blower_wall(type)	Side wall thickness
blower_width(type)	Width of enclosing rectangle

Functions

Function	Description
blower_casing_is_square(type)	True for square radial fans, false for spiral shape radial blowers
blower_exit_offset(type)	Offset of exit's centre from the edge

Modules

Module	Description
blower(type)	Draw specified blower
blower_hole_positions(type)	Translate children to screw hole positions
blower_square(type)	Draw a square blower

Vitamins

Qty	Module call	BOM entry
1	blower(PE4020)	Blower Pengda Technology 4020
1	blower(RB5015)	Blower Runda RB5015
4	screw(M2_cap_screw, 8)	Screw M2 cap x 8mm
3	screw(M3_cap_screw, 20)	Screw M3 cap x 20mm
2	screw(M4_cap_screw, 25)	Screw M4 cap x 25mm
1	blower(BL40x10)	Square radial 4010
4	washer(M2_washer)	Washer M2 x 5mm x 0.3mm
3	washer(M3_washer)	Washer M3 x 7mm x 0.5mm
2	washer(M4_washer)	Washer M4 x 9mm x 0.8mm

Top

---

Bulldogs

Crude representation of a bulldog clip. The handle is not currently drawn but its length can be accessed to allow clearance. Used for holding glass on 3D printer beds but Swiss picture clips can be better.

vitamins/bulldogs.scad Object definitions.

vitamins/bulldog.scad Implementation.

tests/bulldogs.scad Code for this example.

Properties

Function	Description
bulldog_depth(type)	Depth from the back to the front of the tubes
bulldog_handle_length(type)	Length that the handle protrudes from the back
bulldog_height(type)	Height at the back
bulldog_length(type)	Length along the profile
bulldog_radius(type)	Outside radius of the back corners
bulldog_thickness(type)	Thickness of the metal
bulldog_tube(type)	Outside diameter of the tubes

Modules

Module	Description
bulldog(type, open = 4)	Draw bulldog clip open by specified amount

Vitamins

Qty	Module call	BOM entry
1	bulldog(small_bulldog)	Bulldog clip 19mm
1	bulldog(large_bulldog)	Bulldog clip 25mm

Top

---

Buttons

PCB mounted buttons. Can optionally have a coloured cap

vitamins/buttons.scad Object definitions.

vitamins/button.scad Implementation.

tests/buttons.scad Code for this example.

Properties

Function	Description
square_button_cap_d(type)	Diameter of the body of the cap
square_button_cap_flange_d(type)	Diameter of the flange of the cap
square_button_cap_flange_h(type)	Height of the cap flange
square_button_cap_h(type)	Height of the cap including the stem
square_button_cap_stem(type)	Length of the cap stem
square_button_d(type)	Button diameter
square_button_h(type)	Height of the button above the PCB
square_button_height(type)	Height of the base
square_button_rivit(type)	Size of the corner rivets
square_button_wall(type)	Offset of the metal part
square_button_width(type)	Width and depth of the base

Modules

Module	Description
square_button(type, colour = "yellow")	Draw square button with specified cap colour if it has a cap

Vitamins

Qty	Module call	BOM entry
1	square_button(button_12mm, "yellow")	Square button 12mm with yellow cap
1	square_button(button_4p5mm)	Square button 4.5mm
1	square_button(button_6mm)	Square button 6mm

Top

---

Cable_strips

A strip of polypropylene used with ribbon cable to make a cable flexible in one direction only.

Modelled with a Bezier spline, which is not quite the same as a minimum energy curve but very close, epecially near the extreme positions, where the model needs to be accurate.

When the sides are constrained then a circular model is more accurate.

vitamins/cable_strip.scad Implementation.

tests/cable_strips.scad Code for this example.

Functions

Function	Description
bezier_cable_length(depth, min_z, pos)	Calculate a length that will achieve the desired minimum z
cable_strip_length(depth, travel, extra = 15)	Calculate circular cable strip length

Modules

Module	Description
bezier_cable_strip(ways, depth, length, below, extra, pos = 0)	Draw a cable strip using a Bezier curve
cable_strip(ways, depth, travel, extra = 15, pos = 0)	Draw a cable stripe with a semi circular fold

Vitamins

Qty	Module call	BOM entry
3	bezier_cable_strip(20, 50, 150, 100, 10)	Polypropylene strip 170mm x 26mm x 0.8mm
3	cable_strip(20, 25, 100, 30)	Polypropylene strip 189mm x 24mm x 0.8mm

Top

---

Cameras

PCB cameras.

vitamins/cameras.scad Object definitions.

vitamins/camera.scad Implementation.

tests/cameras.scad Code for this example.

Properties

Function	Description
camera_connector_pos(type)	The flex connector block for the camera itself's position
camera_connector_size(type)	The flex connector block for the camera itself's size
camera_lens(type)	Stack of lens parts, can be round, rectanular or rounded rectangular, with optional tapered aperture
camera_lens_offset(type)	Offset of the lens center from the PCB centre
camera_pcb(type)	The PCB part of the camera

Modules

Module	Description
camera(type, show_lens = true)	Draw specified PCB camera
camera_lens(type, offset = 0, show_lens = true)	Draw the lens stack, with optional offset for making a clearance hole

Vitamins

Qty	Module call	BOM entry
1	camera(rpi_camera_v1)	Raspberry Pi camera V1
1	camera(rpi_camera_v2)	Raspberry Pi camera V2
1	camera(rpi_camera)	Raspberry Pi focusable camera

Top

---

Circlips

Circlips aka tapered retaining rings.

vitamins/circlips.scad Object definitions.

vitamins/circlip.scad Implementation.

tests/circlips.scad Code for this example.

Properties

Function	Description
circlip_a(type)	Size of the lugs
circlip_b(type)	Widest part of the taper
circlip_d1(type)	Nominal OD, i.e. diameter of tube
circlip_d2(type)	Groove diameter, i.e. OD when installed
circlip_d3(type)	Relaxed OD when not installed
circlip_d5(type)	Plier hole diameter
circlip_thickness(type)	Thickness

Modules

Module	Description
internal_circlip(type, open = 0)	Draw specified internal circlip, open = 0, for nominal size installed, 1 for relaxed uninstalled, -1 for squeezed to install

Vitamins

Qty	Module call	BOM entry
3	circlip(circlip_12i)	Circlip internal 12mm
3	circlip(circlip_15i)	Circlip internal 15mm
3	circlip(circlip_19i)	Circlip internal 19mm
3	circlip(circlip_21i)	Circlip internal 21mm
3	circlip(circlip_28i)	Circlip internal 28mm

Top

---

Components

Various electronic components used in hot ends and heated beds.

vitamins/components.scad Object definitions.

vitamins/component.scad Implementation.

tests/components.scad Code for this example.

Properties

Function	Description
al_clad_clearance(type)	Clearance from screw hole centre to the body
al_clad_height(type)	Body height
al_clad_hole(type)	Hole diameter
al_clad_hpitch(type)	Lengthways pitch between screw holes
al_clad_length(type)	Body length
al_clad_tab(type)	Tab width
al_clad_thickness(type)	Tab thickness
al_clad_vpitch(type)	Widthways pitch between screw holes
al_clad_width(type)	Width including tabs
al_clad_wire_length(type)	Total length including wires
resistor_colour(type)	Body colour
resistor_diameter(type)	Body diameter
resistor_hole(type)	Hole big enough to glue it into
resistor_length(type)	Body length
resistor_radial(type)	Radial gives bead thermistor style body
resistor_sleeved(type)	Are the leads sleeved
resistor_wire_diameter(type)	Wire diameter
resistor_wire_length(type)	Wire length from body
tc_body_height(type)	Plastic body height
tc_body_inset(type)	How far metal is inset into the plastic body
tc_body_length(type)	Plastic body length
tc_body_width(type)	Plastic body width
tc_hole_dia(type)	Screw hole diameter
tc_hole_pitch(type)	Screw hole pitch
tc_length(type)	Across the lugs
tc_spade_height(type)	Terminal spade height measured from base
tc_spade_pitch(type)	Terminal spade pitch
tc_thickness(type)	Metal thickness
tc_width(type)	Width of lugs

Functions

Function	Description
TO220_thickness()	Thickness of the tab of a TO220
fack2spm_bezel_size()	FACK2SPM Bezel dimensions
fack2spm_screw()	Screw type for FACK2SPM

Modules

Module	Description
TO220(description, leads = 3, lead_length = 16)	Draw a TO220 package, use description to describe what it is
al_clad_resistor(type, value, leads = true)	Draw an aluminium clad resistor
al_clad_resistor_hole_positions(type)	Position children at the screw holes of an aluminium clad resistor
al_clad_resistor_holes(type, h = 100)	Drill screw holes for an aluminium clad resistor
fack2spm()	Draw a FACK2SPM Cat5E RJ45 shielded panel mount coupler
fack2spm_hole_positions()	Place children at the FACK2SPM mounting hole positions
fack2spm_holes(h = 0)	Cut the holes for a FACK2SPM
panel_USBA()	Draw a panel mount USBA connector
panel_USBA_hole_positions()	Place children at hole positions
panel_USBA_holes(h = 100)	Make holes for USBA connector
resistor(type)	Draw specified type of resitor
sleeved_resistor(type, sleeving, bare = 5, heatshrink = false)	Draw a resistor with sleeved leads and option heatshrink
thermal_cutout(type)	Draw specified thermal cutout
thermal_cutout_hole_positions(type)	Place children at hole positions

Vitamins

Qty	Module call	BOM entry
1	TO220("Generic TO220 package")	Generic TO220 package
8	tubing(HSHRNK32)	Heatshrink sleeving ID 3.2mm x 15mm
1	resistor(RWM04106R80J)	Resistor RWM04106R80J 6R8 3W vitreous enamel
1	resistor(RIE1212UB5C5R6)	Resistor UB5C 5R6F 5R6 3W vitreous enamel
1	al_clad_resistor(THS10, 4.7)	Resistor aluminium clad THS10 4.7
1	al_clad_resistor(THS15, 4.7)	Resistor aluminium clad THS15 4.7
1	al_clad_resistor(THS25, 4.7)	Resistor aluminium clad THS25 4.7
1	al_clad_resistor(THS50, 4.7)	Resistor aluminium clad THS50 4.7
4	screw(M2p5_pan_screw, 16)	Screw M2.5 pan x 16mm
4	screw(M3_pan_screw, 16)	Screw M3 pan x 16mm
1	panel_USBA()	Socket USB A panel mount
1	tuk_fack2spm()	TUK FACK2SPM Cat5E RJ45 shielded panel mount coupler
1	thermal_cutout(TC)	Thermal cutout TC
1	resistor(Epcos)	Thermistor Epcos B57560G104F 100K 1%
1	resistor(EpcosBlue)	Thermistor Epcos B57861S104F40 100K 1%
1	resistor(Honewell)	Thermistor Honeywell 135-104LAC-J01 100K 1%

Top

---

D_connectors

D-connectors. Can be any number of ways, male or female, solder buckets, PCB mount or IDC, with or without pillars.

vitamins/d_connectors.scad Object definitions.

vitamins/d_connector.scad Implementation.

tests/d_connectors.scad Code for this example.

Properties

Function	Description
d_flange_length(type)	Length of the flange
d_flange_thickness(type)	Thickness of the flange
d_flange_width(type)	Width of the flange
d_front_height(type)	From the back of the flange to the front
d_height(type)	From the front to the back of the metal part
d_hole_pitch(type)	Mounting hole pitch
d_lengths(type)	Lengths of the D for plug and socket
d_ways(type)	Number of ways
d_widths(type)	Widths of the D for plug and socket

Functions

Function	Description
d_mate_distance(type)	Spacing when mated
d_pcb_offset(type)	Height of the back of the flange above the PCB
d_slot_length(type)	Slot to clear the back

Modules

Module	Description
d_connector_holes(type)	Place children at the screw hole positions
d_pillar()	Draw a pillar for a D-connector
d_plug(type, socket = false, pcb = false, idc = false)	Draw specified D plug, which can be IDC, PCB or plain solder bucket
d_socket(connector, pcb = false, idc = false)	Draw specified D socket, which can be IDC, PCB or plain solder bucket

Vitamins

Qty	Module call	BOM entry
1	d_plug(DCONN15, idc = true)	D-type 15 way IDC plug
1	d_socket(DCONN15, idc = true)	D-type 15 way IDC socket
1	d_plug(DCONN25, pcb = true)	D-type 25 way PCB mount plug
1	d_socket(DCONN25, pcb = true)	D-type 25 way PCB mount socket
1	d_plug(DCONN9)	D-type 9 way plug
1	d_socket(DCONN9)	D-type 9 way socket
6	d_pillar()	D-type connector pillar

Top

---

DIP

Dual inline IC packages and sockets

vitamins/dip.scad Implementation.

tests/DIP.scad Code for this example.

Properties

Function	Description
pdip_pin_W(type)	Pin shoulder width
pdip_pin_h(type)	Pin height
pdip_pin_n(type)	Pin neck
pdip_pin_s(type)	Height above seating plane
pdip_pin_t(type)	Pin thickness
pdip_pin_w(type)	Pin width

Modules

Module	Description
dip(n, part, size, w, pitch, pin)	Draw DIP package
pdip(pins, part, socketed, w = inch(0.3)	Draw standard 0.1" PDIP IC package
pdip_pin(type, l, end)	Draw a pin

Vitamins

Qty	Module call	BOM entry
1	dil_socket(14, 7.62)	DIL socket 28 x 0.3"
1	pdip(14, 74HC00)	IC 74HC00 PDIP14
1	pdip(20, 74HC245)	IC 74HC245 PDIP20
1	pdip(28, ATMEGA328)	IC ATMEGA328 PDIP28
1	pdip(8, NE555)	IC NE555 PDIP8
1	pdip(6, OPTO)	IC OPTO PDIP6
1	pdip(16, ULN2003)	IC ULN2003 PDIP16
1	pdip(18, ULN2803)	IC ULN2803 PDIP18

Top

---

Displays

LCD dispays.

vitamins/displays.scad Object definitions.

vitamins/display.scad Implementation.

tests/displays.scad Code for this example.

Properties

Function	Description
display_aperture(type)	Size of the aperture including its depth
display_height(type)	Depth of the metal part
display_pcb(type)	PCB mounted on the back
display_pcb_offset(type)	3D offset of the PCB centre
display_ribbon(type)	Keep out region for ribbon cable
display_thickness(type)	Height of the metal part
display_threads(type)	Length that studs protrude from the PCB holes
display_touch_screen(type)	Touch screen position and size
display_width(type)	Width of the metal part

Functions

Function	Description
display_depth(type)	Total thickness including touch screen and PCB
display_ts_thickness(type)	Touch screen thickness or 0

Modules

Module	Description
display(type)	Draw specified display
display_aperture(type, clearance, clear_pcb = false)	Make aperture cutout

Vitamins

Qty	Module call	BOM entry
1	display(BigTreeTech_TFT35v3_0)	BigTreeTech TFT35 v3.0
1	display(HDMI5)	HDMI display 5"
1	display(LCD1602A)	LCD display 1602A
1	display(LCDS7282B)	LCD display S-7282B
1	display(SSD1963_4p3)	LCD display SSD1963 4.3"

Top

---

Extrusion_brackets

Brackets for joining extrusions at a corner.

vitamins/extrusion_brackets.scad Object definitions.

vitamins/extrusion_bracket.scad Implementation.

tests/extrusion_brackets.scad Code for this example.

Properties

Function	Description
extrusion_corner_bracket_base_thickness(type)	Thickness of base of bracket
extrusion_corner_bracket_hole_offset(type)	Hole offset from corner
extrusion_corner_bracket_side_thickness(type)	Thickness of side of bracket
extrusion_corner_bracket_size(type)	Size of bracket
extrusion_inner_corner_bracket_size(type)	Size of inner bracket

Modules

Module	Description
extrusion_corner_bracket(type)	Corner bracket for extrusion
extrusion_corner_bracket_assembly(type, part_thickness = 2, screw_type = M4_cap_screw, nut_type = M4_sliding_t_nut, max_screw_depth = 6)	Assembly with fasteners in place
extrusion_corner_bracket_hole_positions(type)	Place children at hole positions
extrusion_inner_corner_bracket(type, grub_screws = true)	Inner corner bracket for extrusion

Vitamins

Qty	Module call	BOM entry
1	extrusion(E2020, 20)	Extrusion E2020 x 20mm
1	extrusion(E2020, 30)	Extrusion E2020 x 30mm
1	extrusion(E2020, 40)	Extrusion E2020 x 40mm
1	extrusion(E2020, 50)	Extrusion E2020 x 50mm
2	extrusion_corner_bracket(E20_corner_bracket)	Extrusion corner bracket 20
2	extrusion_inner_corner_bracket(E20_inner_corner_bracket, true)	Extrusion inner corner bracket 4.5
1	extrusion_inner_corner_bracket(E20_inner_corner_bracket, false)	Extrusion inner corner bracket 4.5
4	sliding_t_nut(M4_sliding_t_nut)	Nut M4 sliding T
4	screw(M4_cap_screw, 8)	Screw M4 cap x 8mm
4	washer(M4_washer)	Washer M4 x 9mm x 0.8mm

Top

---

Extrusions

Aluminium extrusion.

vitamins/extrusions.scad Object definitions.

vitamins/extrusion.scad Implementation.

tests/extrusions.scad Code for this example.

Properties

Function	Description
extrusion_center_hole(type)	Diameter of center hole
extrusion_center_square(type)	Size of center square
extrusion_channel_width(type)	Channel width
extrusion_channel_width_internal(type)	Internal channel width
extrusion_corner_hole(type)	Diameter of corner hole
extrusion_fillet(type)	Radius of corner fillet
extrusion_height(type)	Height of extrusion
extrusion_spar_thickness(type)	Spar thickness
extrusion_tab_thickness(type)	Tab thickness
extrusion_width(type)	Width of extrusion

Modules

Module	Description
extrusion(type, length, center = true, cornerHole = false)	Draw the specified extrusion

Vitamins

Qty	Module call	BOM entry
1	extrusion(E1515, 80)	Extrusion E1515 x 80mm
1	extrusion(E2020, 80)	Extrusion E2020 x 80mm
1	extrusion(E2040, 80)	Extrusion E2040 x 80mm
1	extrusion(E2060, 80)	Extrusion E2060 x 80mm
1	extrusion(E2080, 80)	Extrusion E2080 x 80mm
1	extrusion(E3030, 80, cornerHole = true)	Extrusion E3030 x 80mm
1	extrusion(E3060, 80, cornerHole = true)	Extrusion E3060 x 80mm
1	extrusion(E4040, 80, cornerHole = true)	Extrusion E4040 x 80mm
1	extrusion(E4080, 80, cornerHole = true)	Extrusion E4080 x 80mm

Top

---

Fans

Axial fans.

Can draw three styles: solid, open frame and open frame with screw bosses.

vitamins/fans.scad Object definitions.

vitamins/fan.scad Implementation.

tests/fans.scad Code for this example.

Properties

Function	Description
fan_aperture(type)	Optional diameter for the aperture, which can be bigger than the bore it has flared corners.
fan_blades(type)	The number of blades
fan_bore(type)	Diameter of the hole for the blades
fan_boss_d(type)	Diameter of the screw bosses
fan_depth(type)	Depth of fan
fan_hole_pitch(type)	Screw hole pitch
fan_hub(type)	Diameter of the hub
fan_outer_diameter(type)	Outside diameter of the frame
fan_screw(type)	Screw type
fan_thickness(type)	Thickness of the frame
fan_width(type)	Width of square

Modules

Module	Description
fan(type)	Draw specified fan, origin in the centre
fan_assembly(type, thickness, include_fan = true, screw = false, full_depth = false)	Fan with its fasteners
fan_hole_positions(type, z = undef)	Position children at the screw hole positions
fan_holes(type, poly = false, screws = true, h = 100)	Make all the holes for the fan, or just the aperture if screws is false. Set poly true for poly_holes.

Vitamins

Qty	Module call	BOM entry
1	fan(fan120x25)	Fan 120mm x 25mm
1	fan(fan17x8)	Fan 17mm x 8mm
1	fan(fan25.4x10)	Fan 25.4mm x 10mm
1	fan(fan30x10)	Fan 30mm x 10mm
1	fan(fan40x11)	Fan 40mm x 11mm
1	fan(fan50x15)	Fan 50mm x 15mm
1	fan(fan60x15)	Fan 60mm x 15mm
1	fan(fan60x25)	Fan 60mm x 25mm
1	fan(fan70x15)	Fan 70mm x 15mm
1	fan(fan80x25)	Fan 80mm x 25mm
1	fan(fan80x38)	Fan 80mm x 38mm
4	nut(M2_nut, nyloc = true)	Nut M2 x 1.6mm nyloc
4	nut(M2p5_nut, nyloc = true)	Nut M2.5 x 2.2mm nyloc
8	nut(M3_nut, nyloc = true)	Nut M3 x 2.4mm nyloc
28	nut(M4_nut, nyloc = true)	Nut M4 x 3.2mm nyloc
4	screw(M2_cap_screw, 16)	Screw M2 cap x 16mm
4	screw(M2p5_pan_screw, 20)	Screw M2.5 pan x 20mm
8	screw(M3_dome_screw, 20)	Screw M3 dome x 20mm
20	screw(M4_dome_screw, 16)	Screw M4 dome x 16mm
4	screw(M4_dome_screw, 25)	Screw M4 dome x 25mm
4	screw(M4_dome_screw, 30)	Screw M4 dome x 30mm
8	washer(M2_washer)	Washer M2 x 5mm x 0.3mm
8	washer(M2p5_washer)	Washer M2.5 x 5.9mm x 0.5mm
12	washer(M3_washer)	Washer M3 x 7mm x 0.5mm
32	washer(M4_washer)	Washer M4 x 9mm x 0.8mm

Top

---

Fuseholder

20mm panel mount fuse holder.

vitamins/fuseholder.scad Implementation.

tests/fuseholder.scad Code for this example.

Functions

Function	Description
fuseholder_diameter()	Outside diameter of flange

Modules

Module	Description
fuseholder(thickness)	Fuseholder with nut in place for specified panel thickness
fuseholder_hole(h = 100)	Hole with flats for fuseholder

Vitamins

Qty	Module call	BOM entry
1	fuseholder(6)	Fuse holder 20mm

Top

---

Geared_steppers

Geared tin can steppers

vitamins/geared_steppers.scad Object definitions.

vitamins/geared_stepper.scad Implementation.

tests/geared_steppers.scad Code for this example.

Properties

Function	Description
gs_boss_d(type)	Boss around the shaft diameter
gs_boss_h(type)	Boss around the shaft height
gs_bulge2_d(type)	Plastic rear bulge depth from centre
gs_bulge2_h(type)	Plastic rear bulge height
gs_bulge2_w(type)	Plastic rear bulge width
gs_bulge_d(type)	Plastic bulge depth from centre
gs_bulge_h(type)	Plastic bulge height
gs_bulge_w(type)	Plastic bulge width
gs_diameter(type)	Can diameter
gs_flat_length(type)	Shaft flat length
gs_height(type)	Can height
gs_hole_d(type)	Screw hole diameter
gs_lug_t(type)	Screw lug thickness
gs_lug_w(type)	Screw lug width
gs_offset(type)	Offset of the shaft from the centre of the can
gs_pitch(type)	Screw pitch
gs_shaft_d(type)	Shaft diameter
gs_shaft_flat(type)	Shaft width across the flats
gs_shaft_length(type)	Shaft length

Modules

Module	Description
geared_stepper(type)	Draw the specified geared stepper
geared_stepper_screw_positions(type)	Place children at the screw positions

Vitamins

Qty	Module call	BOM entry
1	geared_stepper(28BYJ_48)	Geared stepper - 28BYJ-48 5V

Top

---

Green_terminals

Parametric green terminal blocks

vitamins/green_terminals.scad Object definitions.

vitamins/green_terminal.scad Implementation.

tests/green_terminals.scad Code for this example.

Properties

Function	Description
gt_back_depth(type)	Back ledge depth
gt_back_height(type)	Height at the back
gt_box_h(type)	Height of the cable entry box
gt_box_setback(type)	How far the contact box is set back from the front
gt_box_w(type)	Width inside the cable entry box
gt_depth(type)	Total front to back depth
gt_front_depth(type)	Front ledge depth
gt_front_height(type)	Height at the front
gt_front_t(type)	Thickness of frame around the front aperture
gt_height(type)	Height of the flat top
gt_pitch(type)	Pitch between terminals
gt_screw_r(type)	Screw head radius
gt_top(type)	Depth at the top
gt_tube_h(type)	Height of optional tubes around the screws
gt_y_offset(type)	Offset of the pins from centre of the depth
gt_y_offset2(type)	Offset of the pins from the screws

Modules

Module	Description
green_terminal(type, ways, skip = [], colour = "lime")	Draw green terminal blocks, skip can be used to remove pins.

Vitamins

Qty	Module call	BOM entry
1	green_terminal(gt_6p35, 2)	Terminal block 2 way 0.25"
1	green_terminal(gt_5p08, 3)	Terminal block 3 way 0.2"
1	green_terminal(gt_3p5, 4)	Terminal block 4 way 3.5mm
1	green_terminal(gt_2p54, 5)	Terminal block 5 way 0.1"

Top

---

Hot_ends

Hot end models. The E3D models were originally contributed to Mendel90 by Philippe LUC @philfifi

Needs updating as mostly obsolete versions.

vitamins/hot_ends.scad Object definitions.

vitamins/hot_end.scad Implementation.

tests/hot_ends.scad Code for this example.

Properties

Function	Description
hot_end_duct_height_fan(type)	Duct height at fan end
hot_end_duct_height_nozzle(type)	Duct height at nozzle end
hot_end_duct_offset(type)	Offset of circular duct centre from the nozzle
hot_end_duct_radius(type)	Require radius to clear the heater block
hot_end_groove(type)	Groove length
hot_end_groove_dia(type)	Groove internal diameter
hot_end_inset(type)	The length that goes into the mounting
hot_end_insulator_colour(type)	Colour of the insulator
hot_end_insulator_diameter(type)	Outside diameter
hot_end_insulator_length(type)	Length of the insulator
hot_end_part(type)	Description
hot_end_style(type)	Basic type, jhead or e3d
hot_end_total_length(type)	Length from nozzle tip to the top

Functions

Function	Description
hot_end_length(type)	The amount the hot end extends below its mounting
hot_end_need_cooling(type)	Has own fan so don't need cooling hole in the duct

Modules

Module	Description
hot_end(type, filament, naked = false, resistor_wire_rotate = [0,0,0], bowden = false)	Draw specified hot end

Vitamins

Qty	Module call	BOM entry
2	tubing(HSHRNK16)	Heatshrink sleeving ID 1.6mm x 15mm
4	tubing(HSHRNK64, 60)	Heatshrink sleeving ID 6.4mm x 60mm
1	e3d_hot_end(E3Dv5, 3)	Hot end E3D V5 direct 3mm
1	e3d_hot_end(E3Dv6, 3)	Hot end E3D V6 direct 3mm
1	e3d_hot_end(E3D_clone, 3)	Hot end E3D clone aliexpress 3mm
1	jhead_hot_end(JHeadMk5, 3)	Hot end JHead MK5 3mm
2	tubing(PTFE07, 62)	PTFE sleeving OD 1.2mm ID 0.71mm x 62mm
2	tubing(PTFE20, 45)	PTFE sleeving OD 2.6mm ID 2mm x 45mm
1	resistor(RIE1212UB5C5R6)	Resistor UB5C 5R6F 5R6 3W vitreous enamel
1		Tape self amalgamating silicone 110mm x 25mm
1	resistor(Epcos)	Thermistor Epcos B57560G104F 100K 1%
2		Wire Red PTFE 16/0.2mm strands, length 170mm
4	ziptie(small_ziptie, 8)	Ziptie 2.5mm x 100mm min length

Top

---

Hygrometer

Mini LCD Celsius Digital Thermometer Hygrometer Temperature Humidity Meter Gauge on eBay

vitamins/hygrometer.scad Implementation.

tests/hygrometer.scad Code for this example.

Functions

Function	Description
hygrometer_or()	The outside radius of a hygrometer

Modules

Module	Description
hygrometer()	Draw a hygrometer
hygrometer_hole(h = 0)	Drill the hole for a hygrometer

Vitamins

Qty	Module call	BOM entry
1	hygrometer()	Mini LCD Digital Thermometer / Hygrometer

Top

---

IECs

IEC mains inlets and outlet.

vitamins/iecs.scad Object definitions.

vitamins/iec.scad Implementation.

tests/IECs.scad Code for this example.

Properties

Function	Description
iec_bezel_h(type)	Bezel height
iec_bezel_r(type)	Bezel corner radius
iec_bezel_t(type)	Bezel thickness
iec_bezel_w(type)	Bezel width
iec_body_h(type)	Body height
iec_body_r(type)	Body corner radius
iec_body_w(type)	Body width
iec_body_w2(type)	Body width at the narrow part
iec_depth(type)	Depth of the body below the flange
iec_flange_h(type)	Flange height
iec_flange_r(type)	Flange corner radius
iec_flange_t(type)	Flange thickness
iec_flange_w(type)	Flange width not including the lugs
iec_male(type)	True for an outlet
iec_part(type)	Description
iec_pitch(type)	Screw hole pitch
iec_screw(type)	Screw type
iec_spades(type)	Spade type
iec_width(type)	Widest part including the lugs

Functions

Function	Description
iec_insert_screw_length()	Screw length used for inserts

Modules

Module	Description
iec(type)	Draw specified IEC connector
iec_assembly(type, thickness)	Assembly with fasteners given panel thickness
iec_holes(type, h = 100, poly = false, horizontal = false, insert = false)	Drill the required panel holes
iec_inserts(type)	Place the inserts
iec_screw_positions(type)	Position children at the screw holes

Vitamins

Qty	Module call	BOM entry
1	iec(IEC_fused_inlet)	IEC fused inlet JR-101-1F
1	iec(IEC_fused_inlet2)	IEC fused inlet old
1	iec(IEC_inlet)	IEC inlet
1	iec(IEC_inlet_atx)	IEC inlet for ATX
1	iec(IEC_outlet)	IEC outlet RS 811-7193
1	iec(IEC_switched_fused_inlet)	IEC320 C14 switched fused inlet module
12	nut(M3_nut, nyloc = true)	Nut M3 x 2.4mm nyloc
4	screw(M3_cs_cap_screw, 10)	Screw M3 cs cap x 10mm
8	screw(M3_cs_cap_screw, 12)	Screw M3 cs cap x 12mm
12	washer(M3_washer)	Washer M3 x 7mm x 0.5mm

Top

---

Inserts

Heatfit threaded inserts. Can be pushed into thermoplastics using a soldering iron with a conical bit set to 200°C.

vitamins/inserts.scad Object definitions.

vitamins/insert.scad Implementation.

tests/inserts.scad Code for this example.

Properties

Function	Description
insert_barrel_d(type)	Diameter of the main barrel
insert_hole_radius(type)	Radius of the required hole in the plastic
insert_length(type)	Length
insert_outer_d(type)	Outer diameter at the top
insert_ring1_h(type)	Height of the top and middle rings
insert_ring2_d(type)	Diameter of the middle ring
insert_ring3_d(type)	Diameter of the bottom ring
insert_screw_diameter(type)	Screw size

Functions

Function	Description
insert_boss_radius(type, wall)	Compute the outer radius of an insert boss
insert_nose_length(type, d)	The length before the second ring.

Modules

Module	Description
insert(type)	Draw specified insert
insert_boss(type, z, wall = 2 * extrusion_width)	Make a boss to take an insert
insert_hole(type, counterbore = 0, horizontal = false)	Make a hole to take an insert, counterbore is the extra length for the screw
insert_lug(insert, wall, counter_bore = 0, extension = 0, corner_r = 0, flying = true)	Make a flying insert lug, see ssr_shroud

Vitamins

Qty	Module call	BOM entry
1	insert(F1BM2)	Heatfit insert M2
1	insert(F1BM2p5)	Heatfit insert M2.5
1	insert(F1BM3)	Heatfit insert M3
1	insert(F1BM4)	Heatfit insert M4

Top

---

Jack

4mm jack sockets and binding posts. Each has a colour for the BOM entry and an optional alternative colour for display. E.g. a "brown" socket for mains live needs to be displayed as "sienna" to look realistic.

vitamins/jack.scad Implementation.

tests/jack.scad Code for this example.

Functions

Function	Description
jack_4mm_hole_radius()	Panel hole radius for 4mm jack
jack_4mm_shielded_hole_radius()	Panel hole radius for 4mm shielded jack
post_4mm_diameter()	Outer diameter of 4mm binding post

Modules

Module	Description
jack_4mm(colour, thickness, display_colour = false)	Draw a 4mm jack socket with nut positioned for specified panel thickness
jack_4mm_shielded(colour, thickness, display_colour = false)	Draw a 4mm shielded jack
post_4mm(colour, thickness, display_colour = false)	Draw a 4mm binding post
post_4mm_hole(h = 100, poly = false)	Drill hole for 4mm binding post

Vitamins

Qty	Module call	BOM entry
1	post_4mm("red", 3)	4mm jack binding post red
1	jack_4mm("blue", 3, "royalblue")	4mm jack socket blue
1	jack_4mm_shielded("brown", 3, "sienna")	4mm shielded jack socket brown

Top

---

KP_pillow_blocks

KP pillow block bearings

vitamins/kp_pillow_blocks.scad Object definitions.

vitamins/kp_pillow_block.scad Implementation.

tests/KP_pillow_blocks.scad Code for this example.

Properties

Function	Description
kp_base_height(type)	Height of base containing the bolts
kp_diameter(type)	Rod hole diameter
kp_hole_offset(type)	Rod hole offset
kp_screw_separation(type)	Separation of bolts in the base

Functions

Function	Description
kp_size(type)	Size of bracket

Modules

Module	Description
kp_pillow_block(type)	Draw the KP pillow block
kp_pillow_block_assembly(type, part_thickness = 2, screw_type = M5_cap_screw, nut_type = undef)	Assembly with fasteners in place
kp_pillow_block_hole_positions(type)	Place children at hole positions

Vitamins

Qty	Module call	BOM entry
1	kp_pillow_block(KP000)	KP000 pillow block
1	kp_pillow_block(KP001)	KP001 pillow block
1	kp_pillow_block(KP08_15)	KP08_15 pillow block
1	kp_pillow_block(KP08_18)	KP08_18 pillow block
2	sliding_t_nut(M4_hammer_nut)	Nut M4 hammer
2	sliding_t_nut(M4_sliding_t_nut)	Nut M4 sliding T
2	sliding_t_nut(M5_sliding_t_nut)	Nut M5 sliding T
2	nut(M5_nut, nyloc = undef)	Nut M5 x 4mm
4	screw(M4_cap_screw, 10)	Screw M4 cap x 10mm
4	screw(M5_cap_screw, 12)	Screw M5 cap x 12mm
4	washer(M4_washer)	Washer M4 x 9mm x 0.8mm
6	washer(M5_washer)	Washer M5 x 10mm x 1mm

Top

---

LDRs

Light dependent resistors.

Larger ones seem to have both a higher dark resistance and a lower bright light resistance.

vitamins/ldrs.scad Object definitions.

vitamins/ldr.scad Implementation.

tests/LDRs.scad Code for this example.

Properties

Function	Description
ldr_active(type)	The active width
ldr_description(type)	Description
ldr_diameter(type)	The diameter of the round bit
ldr_lead_d(type)	The lead diameter
ldr_pitch(type)	Pitch between the leads
ldr_thickness(type)	Thickness
ldr_width(type)	Across the flats

Modules

Module	Description
LDR(type, lead_length = 3)	Draw an LDR, can specify the lead length

Vitamins

Qty	Module call	BOM entry
1	ldr(large_ldr)	Light dependent resistor - large
1	ldr(small_ldr)	Light dependent resistor - small

Top

---

Leadnuts

Nuts for leadscrews.

vitamins/leadnuts.scad Object definitions.

vitamins/leadnut.scad Implementation.

tests/leadnuts.scad Code for this example.

Properties

Function	Description
leadnut_bore(type)	Thread size
leadnut_flange_dia(type)	Flange diameter
leadnut_flange_offset(type)	Offset of the flange from the top
leadnut_flange_t(type)	Flange thickness
leadnut_height(type)	Total height
leadnut_hole_dia(type)	The diameter of the screw holes
leadnut_hole_pitch(type)	The radia pitch of the screw holes
leadnut_holes(type)	The number of screw holes
leadnut_lead(type)	Screw lead
leadnut_od(type)	Outer diameter of the shank
leadnut_pitch(type)	Screw pitch
leadnut_screw(type)	The type of the fixing screws

Functions

Function	Description
leadnut_shank(type)	The length of the shank below the flange

Modules

Module	Description
leadnut(type)	Draw specified leadnut
leadnut_screw_positions(type)	Position children at the screw holes

Vitamins

Qty	Module call	BOM entry
1	leadnut(LSN8x2)	Leadscrew nut 8 x 2
1	leadnut(LSN8x8)	Leadscrew nut 8 x 8 RobotDigg

Top

---

LED_meters

LED voltmeter and ammeter modules available from China and a printed bezel that allows the voltmeter to be mounted into a CNC cut panel. The meter is held in the bezel by melting the stakes with a soldering iron set to 200°C. The bezel is fixed in the panel with hot glue.

The 7 SEGMENT.TTF font from the docs directory needs to be installed to get realistic digits.

vitamins/led_meters.scad Object definitions.

vitamins/led_meter.scad Implementation.

tests/LED_meters.scad Code for this example.

Properties

Function	Description
meter_hole_pitch(type)	Lug hole pitch
meter_hole_radius(type)	Lug hole radius
meter_lug_offset(type)	Lug position, 0 = center, +1 = top
meter_lug_size(type)	Lug length and width
meter_offset(type)	Display position, 0 = center, +1 = top
meter_pcb_size(type)	PCB size excluding lugs
meter_shunt(type)	Ammeter shunt wire
meter_size(type)	Size of display

Functions

Function	Description
meter_bezel_length(type)	Printed bezel length
meter_bezel_rad(type)	Printed bezel corner radius
meter_bezel_wall(type)	Printed bezel wall thickness
meter_bezel_width(type)	Printed bezel width
meter_shunt_y(type)	Shunt y coordinate

Modules

Module	Description
meter(type, colour = "red", value = "888", display_colour = false)	Draw a meter with optional colour and display value
meter_assembly(type, colour = "red", value = "888", display_colour = false)	Meter assembled into the bezel
meter_bezel(type)	Generate the STL for the meter bezel
meter_bezel_hole(type, h = 100)	Make a hole to fit the meter Bezel
meter_hole_positions(type)	Position children over the holes

Vitamins

Qty	Module call	BOM entry
1	meter(led_ameter, colour = "blue")	LED ammeter blue
1	meter(led_meter, colour = "blue")	LED voltmeter blue
1	meter(led_meter)	LED voltmeter red

Printed

Qty	Filename
1	meter_bezel.stl

Top

---

LEDs

Standard domed through hole LEDs. Can specify colour and lead length.

vitamins/leds.scad Object definitions.

vitamins/led.scad Implementation.

tests/LEDs.scad Code for this example.

Properties

Function	Description
led_diameter(type)	Body diameter
led_height(type)	Body height
led_lead_t(type)	Lead thickness
led_pitch(type)	Lead pitch
led_rim_dia(type)	Rim diameter
led_rim_t(type)	Rim height

Functions

Function	Description
led_hole_radius(type)	Radius of panel hole to accept LED

Modules

Module	Description
led(type, colour = "red", lead = 5)	Draw specified LED with desired colour and led length

Vitamins

Qty	Module call	BOM entry
1	led(LED10mm)	LED 10 mm red
1	led(LED3mm, "green")	LED 3 mm green
1	led(LED5mm, "blue")	LED 5 mm blue

Top

---

Light_strips

LED strip lights that can be cut to size.

The definitions are for the full length but they can be cut to size by specifying how many segments, which can by calcuated using light_strip_segments(type, max_length).

The light_strip_clip() module makes a clip to go around the light that can be incorporated into a printed bracket to hold it.

vitamins/light_strips.scad Object definitions.

vitamins/light_strip.scad Implementation.

tests/light_strips.scad Code for this example.

Properties

Function	Description
light_strip_aperture(type)	Inside width
light_strip_depth(type)	Outside depth
light_strip_grouped(type)	Number of LEDs in each group
light_strip_leds(type)	Total number of LEDs
light_strip_length(type)	Un-cut length
light_strip_pcb_thickness(type)	PCB thickness
light_strip_thickness(type)	Metal thickness
light_strip_width(type)	Outside width

Functions

Function	Description
light_strip_clip_depth(light)	Depth of the clip
light_strip_clip_length(light)	Outside length of clip
light_strip_clip_slot(light)	Clip slot size
light_strip_clip_wall()	Clip wall thickness
light_strip_clip_width(light)	Outside width of clip
light_strip_cut_length(type, segs)	Calculate cut length given segments
light_strip_segments(type, max_length)	Calculate the maximum number of segments that fit in max_length

Modules

Module	Description
light_strip(type, segs = undef)	Draw specified light strip, segs can be used to limit the length
light_strip_clip(light)	Make a clip to go over the strip to be incorporated into a bracket

Vitamins

Qty	Module call	BOM entry
1	light_strip(Rigid5050, 6)	Light strip rigid SMD5050 low profile x 250mm (6 segments)
1	light_strip(RIGID5050, 6)	Light strip rigid SMD5050 x 250mm (6 segments)

Top

---

Linear_bearings

LMnUU linear bearings.

vitamins/linear_bearings.scad Object definitions.

vitamins/linear_bearing.scad Implementation.

tests/linear_bearings.scad Code for this example.

Properties

Function	Description
bearing_dia(type)	Outside diameter
bearing_groove_dia(type)	Groove diameter
bearing_groove_length(type)	Groove length
bearing_groove_spacing(type)	Spacing between grooves, outer to outer, ie includes the grooves themselves
bearing_length(type)	Total length
bearing_rod_dia(type)	Internal diameter

Functions

Function	Description
bearing_radius(type)	Outside radius

Modules

Module	Description
linear_bearing(type)	Draw specified linear bearing

Vitamins

Qty	Module call	BOM entry
1	linear_bearing(LM10LUU)	Linear bearing LM10LUU
1	linear_bearing(LM10UU)	Linear bearing LM10UU
1	linear_bearing(LM12LUU)	Linear bearing LM12LUU
1	linear_bearing(LM12UU)	Linear bearing LM12UU
1	linear_bearing(LM16LUU)	Linear bearing LM16LUU
1	linear_bearing(LM16UU)	Linear bearing LM16UU
1	linear_bearing(LM3LUU)	Linear bearing LM3LUU
1	linear_bearing(LM3UU)	Linear bearing LM3UU
1	linear_bearing(LM4LUU)	Linear bearing LM4LUU
1	linear_bearing(LM4UU)	Linear bearing LM4UU
1	linear_bearing(LM5LUU)	Linear bearing LM5LUU
1	linear_bearing(LM5UU)	Linear bearing LM5UU
1	linear_bearing(LM6LUU)	Linear bearing LM6LUU
1	linear_bearing(LM6UU)	Linear bearing LM6UU
1	linear_bearing(LM8LUU)	Linear bearing LM8LUU
1	linear_bearing(LM8UU)	Linear bearing LM8UU

Top

---

Magnets

Cylindrical and ring magnets.

vitamins/magnets.scad Object definitions.

vitamins/magnet.scad Implementation.

tests/magnets.scad Code for this example.

Properties

Function	Description
magnet_h(type)	Height
magnet_id(type)	Inside diameter if a ring
magnet_od(type)	Outer diameter
magnet_r(type)	Corner radius

Modules

Module	Description
magnet(type)	Draw specified magnet

Top

---

Mains_sockets

UK 13A sockets at the moment.

vitamins/mains_sockets.scad Object definitions.

vitamins/mains_socket.scad Implementation.

tests/mains_sockets.scad Code for this example.

Properties

Function	Description
mains_socket_corner(type)	Corner radius
mains_socket_depth(type)	Depth at the base
mains_socket_height(type)	Height
mains_socket_offset(type)	Offset of the socket from the centre
mains_socket_pitch(type)	Screw hole pitch
mains_socket_t(type)	Plastic thickness
mains_socket_top_d(type)	Depth at the top, might be tapered
mains_socket_top_w(type)	Width at the top, might be tapered
mains_socket_width(type)	Width at the base

Functions

Function	Description
mains_socket_screw(type)	Screw type

Modules

Module	Description
mains_socket(type)	Draw specified 13A socket
mains_socket_earth_position(type)	Position of earth terminal for DiBond panel
mains_socket_hole_positions(type)	Position children at the screw holes
mains_socket_holes(type, h = 0)	Panel cutout

Vitamins

Qty	Module call	BOM entry
1	mains_socket(Contactum)	Mains socket 13A
1	mains_socket(MKLOGIC)	Mains socket 13A, switched

Top

---

Microswitches

Used for limit switches.

vitamins/microswitches.scad Object definitions.

vitamins/microswitch.scad Implementation.

tests/microswitches.scad Code for this example.

Properties

Function	Description
microswitch_body_clr(type)	Body colour
microswitch_button_clr(type)	Button colour
microswitch_button_pos(type)	Button position
microswitch_button_t(type)	Button thickness
microswitch_button_w(type)	Button width
microswitch_hole_d(type)	Screw hole diameter
microswitch_holes(type)	Hole positions
microswitch_leg(type)	Leg types
microswitch_legs(type)	Leg positions
microswitch_length(type)	Body length
microswitch_radius(type)	Body corner radius
microswitch_thickness(type)	Body thickness
microswitch_width(type)	Body width

Functions

Function	Description
microswitch_lower_extent(type)	How far legs extend downwards
microswitch_right_extent(type)	How far legs extend right

Modules

Module	Description
microswitch(type)	Draw specified microswitch
microswitch_hole_positions(type)	Place children at the hole positions
microswitch_wire_positions(type, skip = undef)	Place children at the leg hole positions

Vitamins

Qty	Module call	BOM entry
1	microswitch(small_microswitch)	Microswitch DM1-00P-110-3
1	microswitch(medium_microswitch)	Microswitch SS-01 or SS-5GL
1	microswitch(large_microswitch)	Microswitch Saia G3 low force

Top

---

Microview

Microview OLED display with on board AVR by geekammo / Sparkfun.

microview() generates the model. microview(true) makes an object to cut out a panel aperture for it.

Uses STL files copyright geekammo and licenced with MIT license, see microview/LICENSE.txt.

vitamins/microview.scad Implementation.

tests/microview.scad Code for this example.

Modules

Module	Description
microview(cutout = false)	Draw microview or generate a panel cutout for it

Vitamins

Qty	Module call	BOM entry
1	microview()	Microview OLED display

Top

---

Modules

Random screw down modules. Currently just DROK buck converters.

vitamins/modules.scad Object definitions.

vitamins/module.scad Implementation.

tests/modules.scad Code for this example.

Properties

Function	Description
mod_height(type)	Body height
mod_hole_r(type)	Screw hole radius
mod_holes(type)	Screw hole positions
mod_length(type)	Body length
mod_part(type)	Description
mod_screw(type)	Screw type
mod_screw_z(type)	Thickness of screw lug
mod_width(type)	Body width

Modules

Module	Description
mod(type)	Draw specified module
mod_screw_positions(type)	Position children at the screw positions
module_assembly(type, thickness)	Module with its fasteners in place

Vitamins

Qty	Module call	BOM entry
1	mod(drok_buck)	Drok buck converter
2	nut(M4_nut, nyloc = true)	Nut M4 x 3.2mm nyloc
2	screw(M4_dome_screw, 12)	Screw M4 dome x 12mm
4	washer(M4_washer)	Washer M4 x 9mm x 0.8mm

Top

---

Nuts

Default is steel but can be drawn as brass or nylon. A utility for making nut traps included.

If a nut is given a child then it gets placed on its top surface.

vitamins/nuts.scad Object definitions.

vitamins/nut.scad Implementation.

tests/nuts.scad Code for this example.

Properties

Function	Description
nut_pitch(type)	Pitch if not standard metric course thread
nut_radius(type)	Radius across the corners
nut_size(type)	Diameter of the corresponding screw
nut_square_size(type)	Diameter of the corresponding screw
nut_square_thickness(type)	Thickness of the square nut
nut_square_width(type)	Width of the square nut
nut_trap_depth(type)	Depth of nut trap
nut_washer(type)	Corresponding washer

Functions

Function	Description
nut_flat_radius(type)	Radius across the flats
nut_thickness(type, nyloc = false)	Thickness of plain or nyloc version
nut_trap_flat_radius(nut, horizontal = false)	Radius across the flats of a nut trap
nut_trap_radius(nut, horizontal = false)	Radius across the corners of a nut trap

Modules

Module	Description
nut(type, nyloc = false, brass = false, nylon = false)	Draw specified nut
nut_and_washer(type, nyloc)	Draw nut with corresponding washer
nut_square(type, brass = false, nylon = false)	Draw specified square nut
nut_trap(screw, nut, depth = 0, horizontal = false, supported = false, h = 200)	Make a nut trap
wingnut(type)	Draw a wingnut

Vitamins

Qty	Module call	BOM entry
1	nut(M2_nut)	Nut M2 x 1.6mm
1	nut(M2_nut, nyloc = true)	Nut M2 x 1.6mm nyloc
1	nut(M2p5_nut)	Nut M2.5 x 2.2mm
1	nut(M2p5_nut, nyloc = true)	Nut M2.5 x 2.2mm nyloc
1	nut(M2p5_nut, nylon = true)	Nut M2.5 x 2.2mm nylon
1	sliding_t_nut(M3_hammer_nut)	Nut M3 hammer
1	sliding_t_nut(M3_sliding_t_nut)	Nut M3 sliding T
1	nut(M3_nut)	Nut M3 x 2.4mm
1	nut(M3_nut, brass = true)	Nut M3 x 2.4mm brass
1	nut(M3_nut, nyloc = true)	Nut M3 x 2.4mm nyloc
1	nut(M3nS_thin_nut)	Nut M3nS 5.5 x 1.8mm
1	sliding_t_nut(M4_hammer_nut)	Nut M4 hammer
1	sliding_t_nut(M4_sliding_t_nut)	Nut M4 sliding T
1	nut(M4_nut)	Nut M4 x 3.2mm
1	nut(M4_nut, nyloc = true)	Nut M4 x 3.2mm nyloc
1	nut(M4nS_thin_nut)	Nut M4nS 7 x 2.2mm
1	sliding_t_nut(M5_sliding_t_nut)	Nut M5 sliding T
1	nut(M5_nut)	Nut M5 x 4mm
1	nut(M5_nut, nyloc = true)	Nut M5 x 4mm nyloc
1	nut(M5nS_thin_nut)	Nut M5nS 8 x 2.7mm
1	nut(M6_half_nut)	Nut M6 x 3mm
1	nut(M6_nut)	Nut M6 x 5mm
1	nut(M6_nut, nyloc = true)	Nut M6 x 5mm nyloc
1	nut(M6nS_thin_nut)	Nut M6nS 10 x 3.2mm
1	nut(M8_nut)	Nut M8 x 6.5mm
1	nut(M8_nut, nyloc = true)	Nut M8 x 6.5mm nyloc
1	nut(M8nS_thin_nut)	Nut M8nS 13 x 4mm
1	washer(M6_washer)	Washer M6 x 12.5mm x 1.5mm
1	wingnut(M4_wingnut)	Wingnut M4

Top

---

O_ring

Nitrile rubber O-rings.

Just a black torus specified by internal diameter, id and minor_d plus a BOM entry. Can be shown stretched by specifying the actual_id.

vitamins/o_ring.scad Implementation.

tests/o_ring.scad Code for this example.

Modules

Module	Description
O_ring(id, minor_d, actual_id = 0)	Draw O-ring with specified internal diameter and minor diameter. actual_id can be used to stretch it around something.

Vitamins

Qty	Module call	BOM entry
1	O_ring(2.5, 1.6)	O-ring nitrile 2.5mm x 1.6mm

Top

---

Opengrab

Nicodrone OpenGrab V3 electro-permananet magnet, see https://nicadrone.com/products/epm-v3.

A permanent magnet that can be magnatized and de-magnatized electronically.

vitamins/opengrab.scad Implementation.

tests/opengrab.scad Code for this example.

Functions

Function	Description
opengrab_depth()	Module height
opengrab_pcb()	The PCB
opengrab_pcb_z()	PCB offset from the front
opengrab_target_thickness()	Target sheet thickness
opengrab_width()	Module width

Modules

Module	Description
opengrab()	Draw OpenGrab module
opengrab_hole_positions()	Position children at the screw positions
opengrab_side_hole_positions()	Position children at the two 4mm hole
opengrab_target()	Draw OpenGrab target

Vitamins

Qty	Module call	BOM entry
1	opengrab()	OpenGrab V3 electro permanent magnet
1	opengrab_target()	OpenGrab silicon steel target plate

Top

---

Panel_meters

Panel mounted digital meter modules

Notes on the DSN_VC288:

• The tabs aren't modelled because they can be fully retracted if the PCB is removed.
• The current connector isn't moddelled as it is awkwardly tall. I remove it and solder wires instead.

vitamins/panel_meters.scad Object definitions.

vitamins/panel_meter.scad Implementation.

tests/panel_meters.scad Code for this example.

Properties

Function	Description
pmeter_aperture(type)	Aperture length, width and bevel
pmeter_bevel(type)	Bezel bevel inset and start height or a radius
pmeter_bezel(type)	Bezel size
pmeter_bezel_r(type)	Bezel radius
pmeter_button_colour(type)	Button colour
pmeter_button_pos(type)	Button position
pmeter_button_r(type)	Button radius
pmeter_button_size(type)	Button size
pmeter_buttons(type)	List of buttons
pmeter_inner_ap(type)	Inner aperture
pmeter_inner_ap_o(type)	Inner aperture offset
pmeter_pcb(type)	Optional PCB for open types
pmeter_pcb_h(type)	Component height from the front
pmeter_pcb_z(type)	Distance of PCB from the back
pmeter_size(type)	Body size including bezel height
pmeter_tab(type)	Tab size
pmeter_tab_z(type)	Tab vertical position
pmeter_thickness(type)	Wall thickness if not closed

Functions

Function	Description
pmeter_depth(type)	Depth below bezel

Modules

Module	Description
panel_meter(type)	Draw panel mounted LCD meter module
panel_meter_button(type)	Draw panel meter button
panel_meter_cutout(type, h = 0)	Make panel cutout

Vitamins

Qty	Module call	BOM entry
1	panel_meter(DSN_VC288)	DSN-VC288 DC 100V 10A Voltmeter ammeter
1	panel_meter(PZEM001)	Peacefair PZEM-001 AC digital multi-function meter
1	panel_meter(PZEM021)	Peacefair PZEM-021 AC digital multi-function meter
1	panel_meter(DSP5005)	Ruideng DSP5005 Power supply module

Top

---

PCB

PCBs and perfboard with optional components. The shape can be a rectangle with optionally rounded corners or a polygon for odd shapes like Arduino.

vitamins/pcb.scad Implementation.

tests/PCB.scad Code for this example.

Properties

Function	Description
ff_back(type)	Flat flex back section size
ff_latch(type)	Flat flex latch size
ff_mid(type)	Flat flex middle section size
ff_slot(type)	Flat flex slot size
hdmi_depth(type)	Front to back depth
hdmi_height(type)	Outside height above the PCB
hdmi_height1(type)	Inside height at the sides
hdmi_height2(type)	Inside height in the middle
hdmi_thickness(type)	Wall thickness of the metal
hdmi_width1(type)	Inside width at the top
hdmi_width2(type)	Inside width at the bottom
pcb_accessories(type)	List of accessories to go on the BOM, SD cards, USB cables, etc.
pcb_colour(type)	Colour of the subtrate
pcb_components(type)	List of components
pcb_grid(type)	Grid if a perfboard
pcb_hole_d(type)	Mounting hole diameter
pcb_holes(type)	List of hole positions
pcb_land_d(type)	Pad around mounting hole
pcb_length(type)	Length
pcb_name(type)	Description
pcb_parts_on_bom(type)	True if the parts should be separate BOM items
pcb_polygon(type)	Optional outline polygon for odd shaped boards
pcb_radius(type)	Corner radius
pcb_thickness(type)	Thickness
pcb_width(type)	Width

Functions

Function	Description
pcb_component_position(type, name, index = 0)	Return x y position of specified component
pcb_coord(type, p)	Convert offsets from the edge to coordinates relative to the centre
pcb_grid_pos(type, x, y, z = 0)	Returns a pcb grid position
pcb_screw(type, cap = hs_cap)	Mounting screw type
pcb_size(type)	Length, width and thickness in a vector

Modules

Module	Description
barrel_jack(cutout = false)	Draw barrel power jack
block(size, colour, makes_cutout, cutouts)	Draw a coloured cube to represent a random PCB component
buzzer(height, diameter, colour)	Draw PCB buzzer with specified height, diameter and colour
chip(length, width, thickness, colour, cutout = false)	Draw a coloured cube to represent a chip, or other rectangular component
flat_flex(type, cutout = false)	Draw flat flexistrip connector as used on RPI0
flex(cutout = false)	Draw flexistrip connector
hdmi(type, cutout = false)	Draw HDMI socket
jack(cutout = false)	Draw 3.5mm jack
molex_254(ways)	Draw molex header
molex_usb_Ax2(cutout)	Draw Molex USB connector suitable for perf board
pcb(type)	Draw specified PCB
pcb_assembly(type, height, thickness)	Draw PCB assembly with spaces and fasteners in place
pcb_base(type, height, thickness, wall = 2)	Generate STL for a base with PCB spacers
pcb_component(comp, cutouts = false, angle = undef)	Draw pcb component from description
pcb_component_position(type, name)	Position child at the specified component position
pcb_components(type, cutouts = false, angle = undef)	Draw list of PCB components on the PCB
pcb_cutouts(type, angle = undef)	Make cut outs to clear components on a PCB
pcb_grid(type, x, y, z = 0)	Positions children at specified grid position
pcb_screw_positions(type)	Positions children at the mounting hole positions
pcb_spacer(screw, height, wall = 1.8, taper = 0)	Generate STL for PCB spacer
rj45(cutout = false)	Draw RJ45 Ethernet connector
standoff(h, d, h2, d2)	Draw a standoff
terminal_35(ways, colour = "blue")	Draw 3.5mm terminal block
trimpot10(vertical, cutout = false)	Draw a ten turn trimpot
uSD(size, cutout = false)	Draw uSD socket
usb_Ax1(cutout = false)	Draw USB type A single socket
usb_Ax2(cutout = false)	Draw USB type A dual socket
usb_B(cutout = false)	Draw USB B connector
usb_C(cutout = false)	Draw USB C connector
usb_uA(cutout = false)	Draw USB micro A connector

Vitamins

Qty	Module call	BOM entry
1	box_header(2p54header, 4, 2)	Box header 4 x 2
1	d_plug(DCONN9, pcb = true)	D-type 9 way PCB mount plug
1	dil_socket(12, 15.24)	DIL socket 24 x 0.6"
1	hdmi(hdmi_full)	HDMI socket
1	pdip(24, 27C32, w = 15.24)	IC 27C32 PDIP24
1	pdip(8, NE555)	IC NE555 PDIP8
1	idc_transition(2p54header, 5)	IDC transition header 5 x 2
1	led(LED10mm, "yellow")	LED 10 mm yellow
1	led(LED3mm)	LED 3 mm red
1	led(LED5mm, "orange")	LED 5 mm orange
1	microswitch(small_microswitch)	Microswitch DM1-00P-110-3
1	hdmi(hdmi_mini)	Mini HDMI socket
1	molex_254(2)	Molex KK header 2 way
1	pin_header(2p54header, 4, 1)	Pin header 4 x 1
1	pin_header(2p54header, 5, 1)	Pin header 5 x 1
1	pin_socket(2p54header, 4, 1)	Pin socket 4 x 1
1	pin_socket(2p54header, 6, 1)	Pin socket 6 x 1
2	pin_socket(2p54header, 8, 1)	Pin socket 8 x 1
1	ax_res(res1_2, 10, tol = 10)	Resistor 10 Ohms 10% 0.5W
1	ax_res(res1_4, 100, tol = 2)	Resistor 100 Ohms 2% 0.25W
1	ax_res(res1_8, 1000)	Resistor 1000 Ohms 5% 0.125W
1	ax_res(res1_4, 10000)	Resistor 10000 Ohms 5% 0.25W
1	ax_res(res1_2, 100000)	Resistor 100000 Ohms 5% 0.5W
1	ax_res(res1_8, 1e+6, tol = 1)	Resistor 1e+6 Ohms 1% 0.125W
1	smd_led(LED0603, orange)	SMD LED 0603 orange
1	smd_led(LED0805, red)	SMD LED 0805 red
1	smd_resistor(RES0603, 1K)	SMD resistor 0603 1K 0.1W
1	smd_resistor(RES0805, 1K)	SMD resistor 0805 1K 0.125W
1	smd_resistor(RES1206, 1K)	SMD resistor 1206 1K 0.25W
1	square_button(button_4p5mm)	Square button 4.5mm
1	square_button(button_6mm)	Square button 6mm
1	pcb(TMC2130)	TMC2130
1	green_terminal(gt_5p08, 2)	Terminal block 2 way 0.2"
2	green_terminal(gt_6p35, 2)	Terminal block 2 way 0.25"
1	green_terminal(gt_5x17, 2)	Terminal block 2 way 5mm
2	green_terminal(gt_2p54, 3)	Terminal block 3 way 0.1"
1	terminal_35(3)	Terminal block 3 way 3.5mm
1	green_terminal(gt_5x11, 3)	Terminal block 3 way 5mm
1	green_terminal(gt_5x17, 3)	Terminal block 3 way 5mm
2	green_terminal(gt_3p5, 4)	Terminal block 4 way 3.5mm
1	terminal_35(4)	Terminal block 4 way 3.5mm
1	pcb(TestPCB)	Test PCB
1	wire_link(0.8, 5.08, h = 10.16)	Wire link 0.8mm x 0.2"
1	wire_link(0.8, 10.16)	Wire link 0.8mm x 0.4"

Top

---

PCBs

PCBs and perfboard with optional components. The shape can be a rectangle with optionally rounded corners or a polygon for odd shapes like Arduino.

vitamins/pcbs.scad Object definitions.

vitamins/pcb.scad Implementation.

tests/PCBs.scad Code for this example.

Properties

Function	Description
ff_back(type)	Flat flex back section size
ff_latch(type)	Flat flex latch size
ff_mid(type)	Flat flex middle section size
ff_slot(type)	Flat flex slot size
hdmi_depth(type)	Front to back depth
hdmi_height(type)	Outside height above the PCB
hdmi_height1(type)	Inside height at the sides
hdmi_height2(type)	Inside height in the middle
hdmi_thickness(type)	Wall thickness of the metal
hdmi_width1(type)	Inside width at the top
hdmi_width2(type)	Inside width at the bottom
pcb_accessories(type)	List of accessories to go on the BOM, SD cards, USB cables, etc.
pcb_colour(type)	Colour of the subtrate
pcb_components(type)	List of components
pcb_grid(type)	Grid if a perfboard
pcb_hole_d(type)	Mounting hole diameter
pcb_holes(type)	List of hole positions
pcb_land_d(type)	Pad around mounting hole
pcb_length(type)	Length
pcb_name(type)	Description
pcb_parts_on_bom(type)	True if the parts should be separate BOM items
pcb_polygon(type)	Optional outline polygon for odd shaped boards
pcb_radius(type)	Corner radius
pcb_thickness(type)	Thickness
pcb_width(type)	Width

Functions

Function	Description
pcb_component_position(type, name, index = 0)	Return x y position of specified component
pcb_coord(type, p)	Convert offsets from the edge to coordinates relative to the centre
pcb_grid_pos(type, x, y, z = 0)	Returns a pcb grid position
pcb_screw(type, cap = hs_cap)	Mounting screw type
pcb_size(type)	Length, width and thickness in a vector

Modules

Module	Description
barrel_jack(cutout = false)	Draw barrel power jack
block(size, colour, makes_cutout, cutouts)	Draw a coloured cube to represent a random PCB component
buzzer(height, diameter, colour)	Draw PCB buzzer with specified height, diameter and colour
chip(length, width, thickness, colour, cutout = false)	Draw a coloured cube to represent a chip, or other rectangular component
flat_flex(type, cutout = false)	Draw flat flexistrip connector as used on RPI0
flex(cutout = false)	Draw flexistrip connector
hdmi(type, cutout = false)	Draw HDMI socket
jack(cutout = false)	Draw 3.5mm jack
molex_254(ways)	Draw molex header
molex_usb_Ax2(cutout)	Draw Molex USB connector suitable for perf board
pcb(type)	Draw specified PCB
pcb_assembly(type, height, thickness)	Draw PCB assembly with spaces and fasteners in place
pcb_base(type, height, thickness, wall = 2)	Generate STL for a base with PCB spacers
pcb_component(comp, cutouts = false, angle = undef)	Draw pcb component from description
pcb_component_position(type, name)	Position child at the specified component position
pcb_components(type, cutouts = false, angle = undef)	Draw list of PCB components on the PCB
pcb_cutouts(type, angle = undef)	Make cut outs to clear components on a PCB
pcb_grid(type, x, y, z = 0)	Positions children at specified grid position
pcb_screw_positions(type)	Positions children at the mounting hole positions
pcb_spacer(screw, height, wall = 1.8, taper = 0)	Generate STL for PCB spacer
rj45(cutout = false)	Draw RJ45 Ethernet connector
standoff(h, d, h2, d2)	Draw a standoff
terminal_35(ways, colour = "blue")	Draw 3.5mm terminal block
trimpot10(vertical, cutout = false)	Draw a ten turn trimpot
uSD(size, cutout = false)	Draw uSD socket
usb_Ax1(cutout = false)	Draw USB type A single socket
usb_Ax2(cutout = false)	Draw USB type A dual socket
usb_B(cutout = false)	Draw USB B connector
usb_C(cutout = false)	Draw USB C connector
usb_uA(cutout = false)	Draw USB micro A connector

Vitamins

Qty	Module call	BOM entry
1	pcb(ArduinoLeonardo)	Arduino Leonardo
1	pcb(ArduinoUno3)	Arduino Uno R3
1		Cat 5 patch cable 300mm
1	d_plug(DCONN15, pcb = true)	D-type 15 way PCB mount plug
1	pcb(DuetE)	Duet 2 Ethernet electronics
1	pcb(Duex2)	Duex2 expansion board
1	pcb(Duex5)	Duex5 expansion board
1	pcb(EnviroPlus)	Enviro+
1	pcb(ExtruderPCB)	Extruder connection PCB
1	pcb(Keyes5p1)	Keyes5.1 Arduino Uno expansion board
1	pcb(MP1584EN)	MP1584EN 3A buck converter
1	pcb(MT3608)	MT3608 boost converter module
4		Micro SD card
1	molex_254(2)	Molex KK header 2 way
1	molex_254(3)	Molex KK header 3 way
16	nut(M2_nut, nyloc = true)	Nut M2 x 1.6mm nyloc
34	nut(M2p5_nut, nyloc = true)	Nut M2.5 x 2.2mm nyloc
12	nut(M3_nut, nyloc = true)	Nut M3 x 2.4mm nyloc
12	nut(M4_nut, nyloc = true)	Nut M4 x 3.2mm nyloc
1	pcb(PI_IO)	PI_IO V2
1	pcb(PSU12V1A)	PSU 12V 1A
1	pcb(PERF60x40)	Perfboard 60 x 40mm
1	pcb(PERF70x30)	Perfboard 70 x 30mm
1	pcb(PERF70x50)	Perfboard 70 x 50mm
1	pcb(PERF74x51)	Perfboard 74 x 51mm
1	pcb(PERF80x20)	Perfboard 80 x 20mm
1	pin_socket(2p54header, 13, 2, right_angle = true)	Pin socket 13 x 2 right_angle
1	pcb(RAMPSEndstop)	RAMPS Endstop Switch
1	pcb(RPI3)	Raspberry Pi 3
1	pcb(RPI4)	Raspberry Pi 4
1	pcb(RPI0)	Raspberry Pi Zero
12	screw(M2_cap_screw, 16)	Screw M2 cap x 16mm
4	screw(M2_cap_screw, 20)	Screw M2 cap x 20mm
2	screw(M2p5_cap_screw, 20)	Screw M2.5 cap x 20mm
8	screw(M2p5_cap_screw, 25)	Screw M2.5 cap x 25mm
8	screw(M2p5_cap_screw, 30)	Screw M2.5 cap x 30mm
4	screw(M2p5_pan_screw, 20)	Screw M2.5 pan x 20mm
12	screw(M2p5_pan_screw, 25)	Screw M2.5 pan x 25mm
4	screw(M3_cap_screw, 16)	Screw M3 cap x 16mm
8	screw(M3_cap_screw, 30)	Screw M3 cap x 30mm
12	screw(M4_cap_screw, 35)	Screw M4 cap x 35mm
1	pcb(TP4056)	TP4056 Li-lon Battery charger module
3	terminal_35(2)	Terminal block 2 way 3.5mm
2	green_terminal(gt_2p54, 4)	Terminal block 4 way 0.1"
1	pcb(WD2002SJ)	WD2002SJ Buck Boost DC-DC converter
16	washer(M2_washer)	Washer M2 x 5mm x 0.3mm
34	washer(M2p5_washer)	Washer M2.5 x 5.9mm x 0.5mm
12	washer(M3_washer)	Washer M3 x 7mm x 0.5mm
12	washer(M4_washer)	Washer M4 x 9mm x 0.8mm
1	pcb(ZC_A0591)	ZC-A0591 ULN2003 driver PCB

Printed

Qty	Filename
4	pcb_spacer2060.stl
4	pcb_spacer2070.stl
4	pcb_spacer2080.stl
4	pcb_spacer2090.stl
4	pcb_spacer25110.stl
4	pcb_spacer25120.stl
4	pcb_spacer25130.stl
4	pcb_spacer25140_2.stl
4	pcb_spacer25150_2.stl
4	pcb_spacer25160_2.stl
4	pcb_spacer25190.stl
4	pcb_spacer25200.stl
2	pcb_spacer2580.stl
4	pcb_spacer30170.stl
4	pcb_spacer30180.stl
4	pcb_spacer3050.stl
4	pcb_spacer40210.stl
4	pcb_spacer40220.stl
4	pcb_spacer40230.stl

Top

---

Pillars

Threaded pillars. Each end can be male or female.

vitamins/pillars.scad Object definitions.

vitamins/pillar.scad Implementation.

tests/pillars.scad Code for this example.

Properties

Function	Description
pillar_bot_thread(type)	Bottom thread length, + for male, - for female
pillar_height(type)	Body height
pillar_i_colour(type)	Colour of the inner part
pillar_id(type)	Inner diameter of metal part
pillar_ifn(type)	Inner number of sides, 6 for hex, 0 for smooth cylinder
pillar_name(type)	Name of part
pillar_o_colour(type)	Colour of the outer part
pillar_od(type)	Outer diameter of body
pillar_ofn(type)	Outer number of sides, 6 for hex, 0 for smooth cylinder
pillar_thread(type)	Thread diameter
pillar_top_thread(type)	Top thread length, + for male, - for female

Modules

Module	Description
pillar(type)	Draw specified pillar

Vitamins

Qty	Module call	BOM entry
1	pillar(M3x13_hex_pillar)	Pillar hex M/F M3x13
1	pillar(M3x20_hex_pillar)	Pillar hex M/F M3x20
1	pillar(M3x10_nylon_hex_pillar)	Pillar hex nylon M/F M3x10
1	pillar(M3x20_nylon_hex_pillar)	Pillar hex nylon M/F M3x20
1	pillar(M2x16_brass_pillar)	Pillar nurled F/M M2x16
1	pillar(M3x20_nylon_pillar)	Pillar nylon M/F M3x20
1	pillar(M4x17_nylon_pillar)	Pillar nylon M/F M4x20

Top

---

Pin_headers

Pin headers and sockets, etc.

vitamins/pin_headers.scad Object definitions.

vitamins/pin_header.scad Implementation.

tests/pin_headers.scad Code for this example.

Properties

Function	Description
hdr_base_colour(type)	Header insulator colour
hdr_box_size(type)	Box header outside dimensions
hdr_box_wall(type)	Box header wall thickness
hdr_pin_below(type)	Header pin length underneath
hdr_pin_colour(type)	Header pin colour
hdr_pin_length(type)	Header pin length
hdr_pin_width(type)	Header pin size
hdr_pitch(type)	Header pitch
hdr_ra_box_offset(type)	Offset between back of the box and the pins
hdr_ra_height(type)	Height of right angle connector
hdr_socket_depth(type)	Socket depth for female housing
hdr_y_offset(type)	Y offset of pins from center of the box

Modules

Module	Description
box_header(type, cols = 1, rows = 1, smt = false, cutout = false)	Draw box header
idc_transition(type, cols = 5, skip = [], cutout = false)	Draw IDC transition header
jst_xh_header(type, pin_count, right_angle = false, colour = false, pin_colour = false)	Draw JST XH connector
pin(type, length = undef)	Draw a header pin
pin_header(type, cols = 1, rows = 1, smt = false, right_angle = false, cutout = false, colour)	Draw pin header
pin_socket(type, cols = 1, rows = 1, right_angle = false, height = 0, smt = false, cutout = false, colour)	Draw pin socket

Vitamins

Qty	Module call	BOM entry
1	box_header(2p54header, 10, 2)	Box header 10 x 2
1	box_header(2p54header, 8, 1)	Box header 8 x 1
1	idc_transition(2p54header, 10)	IDC transition header 10 x 2
1	pin_header(2p54header, 10, 2)	Pin header 10 x 2
1	pin_header(2p54header, 3, 1, right_angle = true)	Pin header 3 x 1 right_angle
1	pin_header(2p54header, 3, 2, right_angle = true)	Pin header 3 x 2 right_angle
1	pin_header(2p54header, 3, 3, right_angle = true)	Pin header 3 x 3 right_angle
1	pin_header(2p54header, 8, 1)	Pin header 8 x 1
1	pin_socket(2p54header, 10, 2)	Pin socket 10 x 2
1	pin_socket(2p54header, 3, 1, right_angle = true)	Pin socket 3 x 1 right_angle
1	pin_socket(2p54header, 3, 2, right_angle = true)	Pin socket 3 x 2 right_angle
1	pin_socket(2p54header, 3, 3, right_angle = true)	Pin socket 3 x 3 right_angle
1	pin_socket(2p54header, 8, 1)	Pin socket 8 x 1

Top

---

PSUs

Powersupplies. Can be a simple cube or can be defined by a list of six faces, each with thickness, holes, cutouts, etc.

Face order is bottom, top, left, right, front, back.

vitamins/psus.scad Object definitions.

vitamins/psu.scad Implementation.

tests/PSUs.scad Code for this example.

Properties

Function	Description
atx_psu(type)	True if an ATX style PSU
psu_accessories(type)	Accessories to add to BOM, e.g. mains lead
psu_face_cutouts(type)	List of polygons to remove
psu_face_fan(type)	Fan x,y position and type
psu_face_grill(type)	Is this face a grill
psu_face_holes(type)	List of screw hole positions
psu_face_iec(type)	IEC connector x,y, rotation and type
psu_face_switch(type)	Rocker switch x,y, rotation and type
psu_face_thickness(type)	The thickness
psu_face_vents(type)	Vents array position x,y, rotation, size and corner radius
psu_faces(type)	List of face descriptions
psu_height(type)	Height
psu_left_bay(type)	Bay for terminals
psu_length(type)	Length
psu_name(type)	The part name
psu_right_bay(type)	Bay for heatsink
psu_screw(type)	Screw type
psu_screw_hole_radius(type)	Clearance hole for screw, bigger than normal on ATX
psu_terminals(type)	How many terminals and the y offset from the back
psu_width(type)	Width
terminal_block_depth(type)	Total depth
terminal_block_depth2(type)	Depth of contact well
terminal_block_divider(type)	Width of the dividers
terminal_block_height(type)	Height of the dividers
terminal_block_height2(type)	Height under the contacts
terminal_block_pitch(type)	Pitch between screws

Functions

Function	Description
psu_face_transform(type, face)	Returns a transformation matrix to get to the specified face
terminal_block_length(type, ways)	Total length of terminal block

Modules

Module	Description
atx_psu_cutout(type)	Cut out for the rear of an ATX
psu(type)	Draw a power supply
psu_screw_positions(type, face = undef)	Position children at the screw positions on the preferred mounting face, which can be overridden.
terminal_block(type, ways)	Draw a power supply terminal block

Vitamins

Qty	Module call	BOM entry
1		IEC mains lead
1	psu(ATX500)	PSU ATX500
1	psu(KY240W)	PSU KY-240W-12-L
1	psu(PD_150_12)	PSU PD-150-12
1	psu(S_250_48)	PSU S-250-48
1	psu(S_300_12)	PSU S-300-12
4	screw(No632_pan_screw, 8)	Screw 6-32 pan x 8mm
4	screw(M3_cap_screw, 8)	Screw M3 cap x 8mm
8	screw(M3_pan_screw, 8)	Screw M3 pan x 8mm
4	screw(M4_cap_screw, 8)	Screw M4 cap x 8mm
12	washer(M3_washer)	Washer M3 x 7mm x 0.5mm
8	washer(M4_washer)	Washer M4 x 9mm x 0.8mm

Top

---

Pulleys

Timing belt pulleys, both toothed and plain with internal bearings for idlers.

vitamins/pulleys.scad Object definitions.

vitamins/pulley.scad Implementation.

tests/pulleys.scad Code for this example.

Properties

Function	Description
pulley_belt(type)	Belt type
pulley_bore(type)	Bore diameter for shaft
pulley_flange_dia(type)	Flange diameter
pulley_flange_thickness(type)	Flange thickness
pulley_hub_dia(type)	Hub diameter
pulley_hub_length(type)	Hub length
pulley_od(type)	Outer diameter
pulley_screw(type)	Grub screw type
pulley_screw_length(type)	Grup screw length
pulley_screw_z(type)	Grub screw position
pulley_screws(type)	Number of grub screws
pulley_teeth(type)	Number of teeth
pulley_type(type)	Part description
pulley_width(type)	Width of teeth / belt channel

Functions

Function	Description
pulley_extent(type)	Largest diameter
pulley_height(type)	Total height of pulley
pulley_ir(type)	Inside radius of the teeth
pulley_offset(type)	Offset of the belt path centre
pulley_pr(type)	Pitch radius

Modules

Module	Description
pulley(type)	Draw a pulley
pulley_assembly(type)	Draw a pulley with its grub screws in place

Vitamins

Qty	Module call	BOM entry
1	pulley(GT2x16_toothed_idler)	Pulley GT2 idler 16 teeth
1	pulley(GT2x20_toothed_idler)	Pulley GT2 idler 20 teeth
1	pulley(GT2x20_plain_idler)	Pulley GT2 idler smooth 12mm
1	pulley(GT2x16_plain_idler)	Pulley GT2 idler smooth 9.63mm
1	pulley(GT2x16x7_plain_idler)	Pulley GT2 idler smooth 9.63mm
1	pulley(GT2x20ob_pulley)	Pulley GT2OB 20 teeth
1	pulley(GT2x12_pulley)	Pulley GT2RD 12 teeth
1	pulley(GT2x20um_pulley)	Pulley GT2UM 20 teeth
1	pulley(T2p5x16_pulley)	Pulley T2.5 16 teeth
1	pulley(T5x10_pulley)	Pulley T5 10 teeth
1	screw(M3_grub_screw, 3)	Screw M3 grub x 3mm
2	screw(M3_grub_screw, 4)	Screw M3 grub x 4mm
4	screw(M3_grub_screw, 6)	Screw M3 grub x 6mm
1	screw(M4_grub_screw, 6)	Screw M4 grub x 6mm

Top

---

Rails

Linear rails with carriages.

vitamins/rails.scad Object definitions.

vitamins/rail.scad Implementation.

tests/rails.scad Code for this example.

Properties

Function	Description
carriage_block_length(type)	Length of the metal part
carriage_clearance(type)	Gap under the carriage
carriage_height(type)	Height of carriage
carriage_length(type)	Overall length
carriage_pitch_x(type)	Screw hole x pitch
carriage_pitch_y(type)	Screw hole y pitch
carriage_screw(type)	Carriage screw type
carriage_width(type)	Width of carriage
rail_bore(type)	Counter bore diameter for screw head
rail_bore_depth(type)	Counter bore depth
rail_carriage(type)	Carriage type
rail_end(type)	Minimum distance screw can be from the end
rail_end_screw(type)	Screw used for ends only (Countersink used for better location)
rail_height(type)	Height of rail section
rail_hole(type)	Screw hole diameter
rail_pitch(type)	Distance between screws
rail_screw(type)	Screw type
rail_width(type)	Width of rail section

Functions

Function	Description
carriage_screw_depth(type)	Carriage thread depth
rail_holes(type, length)	Number of holes in a rail given its length
rail_screw_height(type, screw)	Position screw taking into account countersink into counterbored hole
rail_travel(type, length)	How far the carriage can travel

Modules

Module	Description
carriage(type, rail, end_colour = grey(20)	Draw the specified carriage
carriage_hole_positions(type)	Position children over screw holes
rail(type, length)	Draw the specified rail
rail_assembly(type, length, pos, carriage_end_colour = grey(20)	Rail and carriage assembly
rail_hole_positions(type, length, first = 0, screws = 100, both_ends = true)	Position children over screw holes
rail_screws(type, length, thickness, screws = 100)	Place screws in the rail

Vitamins

Qty	Module call	BOM entry
1	rail(MGN12, 200)	Linear rail MGN12 x 200mm
1	rail(MGN12H, 200)	Linear rail MGN12H x 200mm
1	rail(MGN15, 200)	Linear rail MGN15 x 200mm
1	rail(MGN5, 200)	Linear rail MGN5 x 200mm
1	rail(MGN7, 200)	Linear rail MGN7 x 200mm
1	rail(MGN9, 200)	Linear rail MGN9 x 200mm
1	rail(SSR15, 200)	Linear rail SSR15 x 200mm
26	nut(M2_nut, nyloc = true)	Nut M2 x 1.6mm nyloc
31	nut(M3_nut, nyloc = true)	Nut M3 x 2.4mm nyloc
4	nut(M4_nut, nyloc = true)	Nut M4 x 3.2mm nyloc
11	screw(M2_cap_screw, 10)	Screw M2 cap x 10mm
15	screw(M2_cs_cap_screw, 10)	Screw M2 cs cap x 10mm
8	screw(M3_cap_screw, 10)	Screw M3 cap x 10mm
12	screw(M3_cap_screw, 12)	Screw M3 cap x 12mm
3	screw(M3_cap_screw, 16)	Screw M3 cap x 16mm
2	screw(M3_cs_cap_screw, 12)	Screw M3 cs cap x 12mm
6	screw(M3_cs_cap_screw, 16)	Screw M3 cs cap x 16mm
2	screw(M4_cap_screw, 16)	Screw M4 cap x 16mm
2	screw(M4_cs_cap_screw, 20)	Screw M4 cs cap x 20mm
26	washer(M2_washer)	Washer M2 x 5mm x 0.3mm
31	washer(M3_washer)	Washer M3 x 7mm x 0.5mm
4	washer(M4_washer)	Washer M4 x 9mm x 0.8mm

Top

---

Ring_terminals

Ring terminals and earth assemblies for DiBond panels.

vitamins/ring_terminals.scad Object definitions.

vitamins/ring_terminal.scad Implementation.

tests/ring_terminals.scad Code for this example.

Properties

Function	Description
ringterm_crimp_length(type)	If non-zero the length of the crimp tube
ringterm_hole(type)	Wire hole diameter
ringterm_id(type)	Inside diameter
ringterm_length(type)	Length of the tail including the ring
ringterm_od(type)	Outside diameter
ringterm_screw(type)	Screw type
ringterm_thickness(type)	Metal thickness
ringterm_width(type)	Width of the tail

Functions

Function	Description
ringterm_extent(type)	Space to leave

Modules

Module	Description
ring_terminal(type)	Draw specifeid ring terminal
ring_terminal_assembly(type, thickness, top = false)	Earthing assembly for DiBond twin skins
ring_terminal_hole(type, h = 0)	Drill hole for the screw

Vitamins

Qty	Module call	BOM entry
3	nut(M3_nut, nyloc = true)	Nut M3 x 2.4mm nyloc
1	ring_terminal(M3_ringterm)	Ring terminal 3mm
1	ring_terminal(M3_ringterm_cs)	Ring terminal 3mm
1	ring_terminal(M3_ringterm_crimp)	Ring terminal crimp 3mm
1	screw(M3_cap_screw, 10)	Screw M3 cap x 10mm
2	screw(M3_dome_screw, 10)	Screw M3 dome x 10mm
6	star_washer(M3_washer)	Washer star M3 x 0.5mm

Top

---

Rockers

Rocker switch. Also used for neon indicator in the same form factor.

vitamins/rockers.scad Object definitions.

vitamins/rocker.scad Implementation.

tests/rockers.scad Code for this example.

Properties

Function	Description
rocker_bezel(type)	Bezel width
rocker_button(type)	How far the button extends from the bezel
rocker_depth(type)	Body depth
rocker_flange_h(type)	Flange height
rocker_flange_t(type)	Flange thickness
rocker_flange_w(type)	Flange width
rocker_height(type)	Body height
rocker_part(type)	Part description
rocker_pivot(type)	Pivot distance from the back of the flange
rocker_slot_h(type)	Panel slot height
rocker_slot_w(type)	Panel slot width
rocker_spades(type)	Spade types and positions
rocker_width(type)	Body width

Modules

Module	Description
rocker(type, colour)	Draw the specified rocker switch
rocker_hole(type, h = 0)	Make a hole to accept a rocker switch, by default 2D, set h for 3D

Vitamins

Qty	Module call	BOM entry
2	rocker(neon_indicator)	Neon Indicator H8630FBNAL
2	rocker(small_rocker)	Rocker Switch PRASA1-16F-BB0BW

Top

---

Rod

Steel rods and studding with chamfered ends.

These items are sysmtrical, so by default the origin is in the centre but it can be changed to the bottom.

vitamins/rod.scad Implementation.

tests/rod.scad Code for this example.

Modules

Module	Description
leadscrew(d , l, lead, starts, center = true)	Draw a leadscrew with specified diameter, length, lead and number of starts
rod(d , l, center = true)	Draw a smooth rod with specified diameter and length
studding(d , l, center = true)	Draw a threaded rod with specified diameter and length

Vitamins

Qty	Module call	BOM entry
1	leadscrew(10, 80, 8, 4)	Leadscrew 10 x 80mm, 8mm lead, 4 starts
1	leadscrew(12, 80, 12, 4)	Leadscrew 12 x 80mm, 12mm lead, 4 starts
1	leadscrew(16, 80, 16, 4)	Leadscrew 16 x 80mm, 16mm lead, 4 starts
1	leadscrew(6, 80, 2, 1)	Leadscrew 6 x 80mm, 2mm lead, 1 starts
1	leadscrew(8, 80, 8, 4)	Leadscrew 8 x 80mm, 8mm lead, 4 starts
1	rod(10, 80)	Smooth rod 10mm x 80mm
1	rod(12, 80)	Smooth rod 12mm x 80mm
1	rod(16, 80)	Smooth rod 16mm x 80mm
1	rod(3, 80)	Smooth rod 3mm x 80mm
1	rod(4, 80)	Smooth rod 4mm x 80mm
1	rod(5, 80)	Smooth rod 5mm x 80mm
1	rod(6, 80)	Smooth rod 6mm x 80mm
1	rod(8, 80)	Smooth rod 8mm x 80mm
1	studding(10, 80)	Threaded rod M10 x 80mm
1	studding(12, 80)	Threaded rod M12 x 80mm
1	studding(16, 80)	Threaded rod M16 x 80mm
1	studding(3, 80)	Threaded rod M3 x 80mm
1	studding(4, 80)	Threaded rod M4 x 80mm
1	studding(5, 80)	Threaded rod M5 x 80mm
1	studding(6, 80)	Threaded rod M6 x 80mm
1	studding(8, 80)	Threaded rod M8 x 80mm

Top

---

Screws

Machine screws and wood screws with various head styles.

For an explanation of screw_polysink() see https://hydraraptor.blogspot.com/2020/12/sinkholes.html.

vitamins/screws.scad Object definitions.

vitamins/screw.scad Implementation.

tests/screws.scad Code for this example.

Properties

Function	Description
screw_clearance_radius(type)	Clearance hole radius
screw_head_height(type)	Head height
screw_head_radius(type)	Head radius
screw_head_type(type)	Head style hs_cap, hs_pan, hs_cs, hs_hex, hs_grub, hs_cs_cap, hs_dome
screw_max_thread(type)	Maximum thread length
screw_nut(type)	Default nut
screw_pilot_hole(type)	Pilot hole radius for wood screws, tap radius for machine screws
screw_radius(type)	Nominal radius
screw_socket_af(type)	Socket across flats
screw_socket_depth(type)	Socket or slot depth
screw_washer(type)	Default washer

Functions

Function	Description
screw_boss_diameter(type)	Boss big enough for nut trap and washer
screw_head_depth(type, d = 0)	How far a counter sink head will go into a straight hole diameter d
screw_longer_than(x)	Returns shortest screw length longer or equal to x
screw_nut_radius(type)	Radius of matching nut
screw_polysink_r(type, z)	Countersink hole profile corrected for rounded staircase extrusions.
screw_shorter_than(x)	Returns longest screw length shorter than or equal to x

Modules

Module	Description
screw(type, length, hob_point = 0, nylon = false)	Draw specified screw, optionally hobbed or nylon
screw_and_washer(type, length, star = false, penny = false)	Screw with a washer which can be standard or penny and an optional star washer on top
screw_countersink(type, drilled = true)	Countersink shape
screw_polysink(type)	A countersink hole made from stacked polyholes for printed parts

Vitamins

Qty	Module call	BOM entry
1	screw(No632_pan_screw, 30)	Screw 6-32 pan x 30mm
1	screw(M2_cap_screw, 10)	Screw M2 cap x 10mm
1	screw(M2_cs_cap_screw, 10)	Screw M2 cs cap x 10mm
1	screw(M2_dome_screw, 10)	Screw M2 dome x 10mm
1	screw(M2p5_cap_screw, 10)	Screw M2.5 cap x 10mm
1	screw(M2p5_pan_screw, 10)	Screw M2.5 pan x 10mm
1	screw(M3_cap_screw, 10)	Screw M3 cap x 10mm
1	screw(M3_cs_cap_screw, 10)	Screw M3 cs cap x 10mm
1	screw(M3_dome_screw, 10)	Screw M3 dome x 10mm
1	screw(M3_grub_screw, 6)	Screw M3 grub x 6mm
1	screw(M3_hex_screw, 10)	Screw M3 hex x 10mm
1	screw(M3_low_cap_screw, 10)	Screw M3 low cap x 10mm
1	screw(M3_pan_screw, 10)	Screw M3 pan x 10mm
1	screw(M4_cap_screw, 25)	Screw M4 cap x 25mm
1	screw(M4_cs_cap_screw, 25)	Screw M4 cs cap x 25mm
1	screw(M4_dome_screw, 25)	Screw M4 dome x 25mm
1	screw(M4_grub_screw, 6)	Screw M4 grub x 6mm
1	screw(M4_hex_screw, 30)	Screw M4 hex x 30mm
1	screw(M4_pan_screw, 30)	Screw M4 pan x 30mm
1	screw(M5_cap_screw, 30)	Screw M5 cap x 30mm
1	screw(M5_hex_screw, 30)	Screw M5 hex x 30mm
1	screw(M5_pan_screw, 30)	Screw M5 pan x 30mm
1	screw(M6_cap_screw, 30)	Screw M6 cap x 30mm
1	screw(M6_hex_screw, 30)	Screw M6 hex x 30mm
1	screw(M6_pan_screw, 30)	Screw M6 pan x 30mm
1	screw(M8_cap_screw, 35)	Screw M8 cap x 35mm
1	screw(M8_hex_screw, 30)	Screw M8 hex x 30mm
1	screw(No2_screw, 10)	Screw No2 pan wood x 10mm
1	screw(No4_screw, 10)	Screw No4 pan wood x 10mm
1	screw(No6_cs_screw, 30)	Screw No6 cs wood x 30mm
1	screw(No6_screw, 30)	Screw No6 pan wood x 30mm

Top

---

SCS_bearing_blocks

SCSnUU and SCSnLUU bearing blocks

vitamins/scs_bearing_blocks.scad Object definitions.

vitamins/scs_bearing_block.scad Implementation.

tests/SCS_bearing_blocks.scad Code for this example.

Properties

Function	Description
scs_bearing(type)	Linear bearing used
scs_block_center_height(type)	Height of the center of the block
scs_block_side_height(type)	Height of the side of the block, this determines the minimum screw length
scs_circlip(type)	Circlip used
scs_hole_offset(type)	Offset of bearing hole from base of block
scs_screw(type)	Screw type
scs_screw_separation_x(type)	Screw separation in X direction
scs_screw_separation_z(type)	Screw separation in Z direction
scs_spacer(type)	Spacer used in long bearings

Functions

Function	Description
scs_size(type)	Size of scs bracket bounding block

Modules

Module	Description
scs_bearing_block(type)	Draw the specified SCS bearing block
scs_bearing_block_assembly(type, part_thickness, screw_type, nut_type)	Assembly with screws and nuts in place
scs_bearing_block_hole_positions(type)	Place children at hole positions

Vitamins

Qty	Module call	BOM entry
12	nut(M4_nut)	Nut M4 x 3.2mm
24	nut(M5_nut)	Nut M5 x 4mm
1	scs_bearing_block(SCS10LUU)	SCS10LUU bearing block
1	scs_bearing_block(SCS10UU)	SCS10UU bearing block
1	scs_bearing_block(SCS12LUU)	SCS12LUU bearing block
1	scs_bearing_block(SCS12UU)	SCS12UU bearing block
1	scs_bearing_block(SCS16LUU)	SCS16LUU bearing block
1	scs_bearing_block(SCS16UU)	SCS16UU bearing block
1	scs_bearing_block(SCS6UU)	SCS6UU bearing block
1	scs_bearing_block(SCS8LUU)	SCS8LUU bearing block
1	scs_bearing_block(SCS8UU)	SCS8UU bearing block
4	screw(M4_cap_screw, 25)	Screw M4 cap x 25mm
8	screw(M4_cap_screw, 30)	Screw M4 cap x 30mm
16	screw(M5_cap_screw, 35)	Screw M5 cap x 35mm
8	screw(M5_cap_screw, 45)	Screw M5 cap x 45mm
12	washer(M4_washer)	Washer M4 x 9mm x 0.8mm
24	washer(M5_washer)	Washer M5 x 10mm x 1mm

Top

---

Sealing_strip

Sealing strip from B&Q used to seal around the door of 3D printers.

vitamins/sealing_strip.scad Implementation.

tests/sealing_strip.scad Code for this example.

Modules

Module	Description
sealing_strip(length)	Draw specified length of sealing strip

Vitamins

Qty	Module call	BOM entry
1	sealing_strip(100)	Sealing strip 10mm x 4mm x 100mm

Top

---

Shaft_couplings

Shaft couplings

vitamins/shaft_couplings.scad Object definitions.

vitamins/shaft_coupling.scad Implementation.

tests/shaft_couplings.scad Code for this example.

Properties

Function	Description
sc_diameter(type)	Coupling outer diameter
sc_diameter1(type)	Diameter of smaller shaft
sc_diameter2(type)	Diameter of larger shaft
sc_length(type)	Coupling length

Modules

Module	Description
shaft_coupling(type, colour = "silver")	Draw the shaft coupling

Vitamins

Qty	Module call	BOM entry
1	shaft_coupling(SC_5x8_rigid)	Shaft coupling SC_5x8_rigid

Top

---

Sheets

Sheet materials. Rectangular with optional rounded corners. Negative radii make a chamfer.

The "Soft" parameter can be used to determinesif the sheet material needs machine screws or wood screws, e.g.:

• If soft, wood screws will be used, with a pilot hole.
• If not soft, either tapped holes or a clearance hole and nuts will be used to retain screws.

The "Colour" parameter is a quad-array: [R, G, B, Alpha], or can be a named colour, see OpenSCAD_User_Manual.

For speed sheets should be modelled in 2D by subtracting holes from 2D templates made by sheet_2D() and then extruded to 3D with render_2D_sheet(). Note that modules that drill holes will return a 2D object if h is set to 0 to facilitate this.

vitamins/sheets.scad Object definitions.

vitamins/sheet.scad Implementation.

tests/sheets.scad Code for this example.

Properties

Function	Description
sheet_colour(type)	Colour
sheet_is_soft(type)	Is soft enough for wood screws
sheet_thickness(type)	Thickness

Modules

Module	Description
render_2D_sheet(type, colour = false)	Extrude a 2D sheet template and give it the correct colour
render_sheet(type, colour = false)	Render a sheet in the correct colour after holes have been subtracted
sheet(type, w, d, corners = [0, 0, 0, 0])	Draw specified sheet
sheet_2D(type, w, d, corners = [0, 0, 0, 0])	2D sheet template with specified size and optionally rounded corners

Vitamins

Qty	Module call	BOM entry
1	sheet(FoilTape, 30, 30, 2)	Aluminium foil tape 30mm x 30mm x 0.05mm
1	sheet(AL6, 30, 30, 2)	Aluminium tooling plate 30mm x 30mm x 6mm
1	sheet(AL8, 30, 30, 2)	Aluminium tooling plate 30mm x 30mm x 8mm
1	sheet(Cardboard, 30, 30, 2)	Corrugated cardboard 30mm x 30mm x 5mm
1	sheet(Foam20, 30, 30, 2)	Foam sponge 30mm x 30mm x 20mm
1	sheet(DiBond, 30, 30, 2)	Sheet DiBond 30mm x 30mm x 3mm
1	sheet(DiBond6, 30, 30, 2)	Sheet DiBond 30mm x 30mm x 6mm
1	sheet(MDF10, 30, 30, 2)	Sheet MDF 30mm x 30mm x 10mm
1	sheet(MDF12, 30, 30, 2)	Sheet MDF 30mm x 30mm x 12mm
1	sheet(MDF19, 30, 30, 2)	Sheet MDF 30mm x 30mm x 19mm
1	sheet(MDF6, 30, 30, 2)	Sheet MDF 30mm x 30mm x 6mm
1	sheet(PMMA10, 30, 30, 2)	Sheet acrylic 30mm x 30mm x 10mm
1	sheet(PMMA2, 30, 30, 2)	Sheet acrylic 30mm x 30mm x 2mm
1	sheet(PMMA3, 30, 30, 2)	Sheet acrylic 30mm x 30mm x 3mm
1	sheet(PMMA6, 30, 30, 2)	Sheet acrylic 30mm x 30mm x 6mm
1	sheet(PMMA8, 30, 30, 2)	Sheet acrylic 30mm x 30mm x 8mm
1	sheet(glass2, 30, 30, 2)	Sheet glass 30mm x 30mm x 2mm
1	sheet(Steel06, 30, 30, 2)	Sheet mild steel 30mm x 30mm x 0.6mm

Top

---

SK_brackets

SK shaft support brackets

vitamins/sk_brackets.scad Object definitions.

vitamins/sk_bracket.scad Implementation.

tests/SK_brackets.scad Code for this example.

Properties

Function	Description
sk_base_height(type)	Height of base containing the screws
sk_diameter(type)	Rod hole diameter
sk_hole_offset(type)	Rod hole offset
sk_screw_separation(type)	Separation of screws in the base

Functions

Function	Description
sk_size(type)	Size of bracket

Modules

Module	Description
sk_bracket(type)	SK shaft support bracket
sk_bracket_assembly(type, part_thickness = 2, screw_type = M5_cap_screw, nut_type = undef, max_screw_depth = 6)	Assembly with fasteners in place
sk_bracket_hole_positions(type)	Place children at hole positions

Vitamins

Qty	Module call	BOM entry
2	extrusion(E2020, 20)	Extrusion E2020 x 20mm
2	extrusion(E3030, 20)	Extrusion E3030 x 20mm
2	sliding_t_nut(M4_hammer_nut)	Nut M4 hammer
2	sliding_t_nut(M4_sliding_t_nut)	Nut M4 sliding T
2	sliding_t_nut(M5_sliding_t_nut)	Nut M5 sliding T
2	nut(M5_nut, nyloc = undef)	Nut M5 x 4mm
1	sk_bracket(SK10)	SK10 shaft support bracket
1	sk_bracket(SK12)	SK12 shaft support bracket
1	sk_bracket(SK16)	SK16 shaft support bracket
1	sk_bracket(SK8)	SK8 shaft support bracket
2	screw(M4_cap_screw, 12)	Screw M4 cap x 12mm
2	screw(M4_dome_screw, 12)	Screw M4 dome x 12mm
4	screw(M5_cap_screw, 16)	Screw M5 cap x 16mm
4	washer(M4_washer)	Washer M4 x 9mm x 0.8mm
6	washer(M5_washer)	Washer M5 x 10mm x 1mm

Top

---

SMDs

Surface mount components for PCBs.

vitamins/smds.scad Object definitions.

vitamins/smd.scad Implementation.

tests/SMDs.scad Code for this example.

Properties

Function	Description
smd_led_lens(type)	Lens length width and height
smd_led_size(type)	Body length, width and height
smd_res_end_cap(type)	End cap width
smd_res_power(type)	Power rating in Watts
smd_res_size(type)	Body length, width and height

Functions

Function	Description
smd_100th(x)	Convert dimension to 1/100" notation
smd_led_height(type)	Total height
smd_size(size)	Convert size to 1/100" notation

Modules

Module	Description
smd_led(type, colour, cutout)	Draw an SMD LED with specified colour
smd_resistor(type, value)	Draw an SMD resistor with specified value

Vitamins

Qty	Module call	BOM entry
1	smd_led(LED0603, green)	SMD LED 0603 green
1	smd_led(LED0805, blue)	SMD LED 0805 blue
1	smd_resistor(RES0603, 1R0)	SMD resistor 0603 1R0 0.1W
1	smd_resistor(RES0805, 10M)	SMD resistor 0805 10M 0.125W
1	smd_resistor(RES1206, 100K)	SMD resistor 1206 100K 0.25W

Top

---

Spades

Spade terminals used as parts of electrical components.

vitamins/spades.scad Object definitions.

vitamins/spade.scad Implementation.

tests/spades.scad Code for this example.

Properties

Function	Description
spade_hole(type)	Hole diameter
spade_l(type)	Length of the narrow part
spade_shank(type)	Shank width
spade_t(type)	Thickness
spade_w(type)	Width

Modules

Module	Description
spade(type, height = 14)	Draw a spade of the specified type and total length. The shank length is adjusted to make the length.

Top

---

Spools

Filament spool models

vitamins/spools.scad Object definitions.

vitamins/spool.scad Implementation.

tests/spools.scad Code for this example.

Properties

Function	Description
spool_depth(type)	Internal depth
spool_diameter(type)	Outside diameter
spool_hub_bore(type)	Bore through the hub
spool_hub_diameter(type)	Diameter of the thicker hub
spool_hub_taper(type)	Diameter at which it tapers down to rim thickness
spool_hub_thickness(type)	Thickness at the hub
spool_rim_thickness(type)	Thickness at the outside rim
spool_width(type)	Internal width

Functions

Function	Description
spool_height(type)	Outside width
spool_pitch(type)	Spacing of the rims

Modules

Module	Description
spool(type, filament_depth = 0, filament_colour = "white", filament_d = 3)	Draw specified spool with optional filament

Vitamins

Qty	Module call	BOM entry
1	spool(spool_200x55)	Filament spool 200 x 55
1	spool(spool_200x60)	Filament spool 200 x 60
1	spool(spool_300x85)	Filament spool 300 x 85
1	spool(spool_300x88)	Filament spool 300 x 88

Top

---

Springs

Compression springs. Can be tapered, have open, closed or ground ends. Ground ends will render a lot slower.

By default springs have their origin at the bottom but can be centered.

vitamins/springs.scad Object definitions.

vitamins/spring.scad Implementation.

tests/springs.scad Code for this example.

Properties

Function	Description
spring_closed(type)	Are the ends closed
spring_colour(type)	The colour
spring_gauge(type)	Wire gauge
spring_ground(type)	Are the ends ground flat
spring_length(type)	Uncompressed length
spring_mesh(type)	Optional pre-computed mesh
spring_od(type)	Outside diameter
spring_od2(type)	Second diameter for spiral springs
spring_turns(type)	Number of turns

Functions

Function	Description
comp_spring(type, l = 0)	Calculate the mesh for spring

Modules

Module	Description
comp_spring(type, l = 0, center = false)	Draw specified spring, l can be set to specify the compressed length.

Vitamins

Qty	Module call	BOM entry
1	comp_spring(batt_spring)	Spring 5 - 6mm spiral OD, 0.5mm gauge x 8mm long, closed end
1	comp_spring(peg_spring)	Spring 6.4mm OD, 0.9mm gauge x 15.5mm long, closed end

Top

---

SSRs

Solid state relays.

vitamins/ssrs.scad Object definitions.

vitamins/ssr.scad Implementation.

tests/SSRs.scad Code for this example.

Properties

Function	Description
ssr_base_t(type)	Thickness of metal base
ssr_height(type)	Height
ssr_hole_d(type)	Screw hole diameter
ssr_hole_pitch(type)	Difference between screw centres
ssr_length(type)	Length
ssr_part(type)	Description
ssr_slot_w(type)	Width of the screw slot in the body
ssr_width(type)	Width

Modules

Module	Description
ssr(type)	Draw specified SSR
ssr_assembly(type, screw, thickness)	Assembly with fasteners in place
ssr_hole_positions(type)	Place children at the screw positions

Vitamins

Qty	Module call	BOM entry
4	nut(M4_nut, nyloc = true)	Nut M4 x 3.2mm nyloc
4	screw(M4_cap_screw, 16)	Screw M4 cap x 16mm
1	ssr(SSR25DA)	Solid state relay Fotek 25A
1	ssr(SSR10DA)	Solid state relay Robodigg 10A
8	washer(M4_washer)	Washer M4 x 9mm x 0.8mm

Top

---

Stepper_motors

NEMA stepper motor model.

vitamins/stepper_motors.scad Object definitions.

vitamins/stepper_motor.scad Implementation.

tests/stepper_motors.scad Code for this example.

Properties

Function	Description
NEMA_body_radius(type)	Body radius
NEMA_boss_height(type)	Boss height
NEMA_boss_radius(type)	Boss around the spindle radius
NEMA_cap_heights(type)	Height of the end cap at the corner and the side
NEMA_hole_pitch(type)	Screw hole pitch
NEMA_length(type)	Body length
NEMA_radius(type)	End cap radius
NEMA_shaft_dia(type)	Shaft diameter
NEMA_shaft_length(type)	Shaft length above the face, if a list then a leadscrew: length, lead, starts
NEMA_width(type)	Width of the square face

Functions

Function	Description
NEMA_big_hole(type)	Clearance hole for the big boss
NEMA_holes(type)	Screw positions for for loop

Modules

Module	Description
NEMA(type, shaft_angle = 0, jst_connector = false)	Draw specified NEMA stepper motor
NEMA_outline(type)	2D outline
NEMA_screw_positions(type, n = 4)	Positions children at the screw holes
NEMA_screws(type, screw, n = 4, screw_length = 8, earth = undef)	Place screws and optional earth tag

Vitamins

Qty	Module call	BOM entry
4	ring_terminal(M3_ringterm)	Ring terminal 3mm
15	screw(M3_pan_screw, 8)	Screw M3 pan x 8mm
1	NEMA(NEMA14)	Stepper motor NEMA14 x 36mm
1	NEMA(NEMA16)	Stepper motor NEMA16 x 19.2mm
1	NEMA(NEMA17S)	Stepper motor NEMA17 x 34mm
1	NEMA(NEMA17M)	Stepper motor NEMA17 x 40mm
1	NEMA(NEMA17)	Stepper motor NEMA17 x 47mm
1	NEMA(NEMA23)	Stepper motor NEMA22 x 51.2mm
11	washer(M3_washer)	Washer M3 x 7mm x 0.5mm
15	star_washer(M3_washer)	Washer star M3 x 0.5mm

Top

---

Swiss_clips

Swiss picture clip. Used for holding glass on 3D printer beds.

The bending model is an approximation because in real life the arms bend. Should be reasonably accurate if not close to fully open.

vitamins/swiss_clips.scad Object definitions.

vitamins/swiss_clip.scad Implementation.

tests/Swiss_clips.scad Code for this example.

Properties

Function	Description
sclip_arm_length(type)	Length of arms
sclip_arm_width(type)	Width of spring arms
sclip_height(type)	External height
sclip_hinge_offset(type)	Offset of hinge
sclip_hook(type)	hook, length, width
sclip_length(type)	Total external length
sclip_max_gap(type)	Maximum opening
sclip_radius(type)	Bend radius
sclip_spigot(type)	Spigot length, width, height
sclip_thickness(type)	Thickness of the metal
sclip_width(type)	Width

Modules

Module	Description
swiss_clip(type, open = 0.9)	Draw a Swiss clip open by specified amount
swiss_clip_hole(type, open, h = 0)	Drill hole for spigot

Vitamins

Qty	Module call	BOM entry
1	sheet(AL6, 40, 20, 1)	Aluminium tooling plate 40mm x 20mm x 6mm
1	sheet(glass2, 40, 20, 1)	Sheet glass 40mm x 20mm x 2mm
2	swiss_clip(UKPFS1008_10)	Swiss picture clip UKPFS1008_10 11mm

Top

---

Toggles

Toggle switches

vitamins/toggles.scad Object definitions.

vitamins/toggle.scad Implementation.

tests/toggles.scad Code for this example.

Properties

Function	Description
toggle_angle(type)	Angle of the paddle
toggle_collar_d(type)	Collar diameter
toggle_collar_t(type)	Collar thickness
toggle_colour(type)	Body colour
toggle_depth(type)	Body depth
toggle_height(type)	Body height
toggle_id(type)	Barrel inside diameter
toggle_inset(type)	How far the metal is inset into the body
toggle_nut(type)	Nut type
toggle_od(type)	Barrel outside diameter
toggle_paddle_d1(type)	Diameter at the top of the paddle
toggle_paddle_l(type)	Length of the paddle
toggle_paddle_w(type)	Width at the top for non-spherical end
toggle_part(type)	Part description
toggle_pin_hp(type)	Pin x pitch
toggle_pin_l(type)	Pin length
toggle_pin_t(type)	Pin thickness
toggle_pin_vp(type)	Pin y pitch
toggle_pin_w(type)	Pin width
toggle_pins(type)	Number of pins
toggle_pivot(type)	Z offset of the pivot point above the top of the body
toggle_thickness(type)	Metal thickness
toggle_thread(type)	Length of threaded barrel
toggle_washer(type)	Washer type
toggle_width(type)	Body width

Functions

Function	Description
toggle_hole_radius(type)	Radius of the panel hole

Modules

Module	Description
toggle(type, thickness)	Draw specified toggle switch with the nuts and washers positioned for the specified panel thickness
toggle_hole(type, h = 100)	Drill the hole in a panel

Vitamins

Qty	Module call	BOM entry
1	toggle(AP5236, 3)	Toggle switch AP5236
1	toggle(CK7101, 3)	Toggle switch CK7101
1	toggle(CK7105, 3)	Toggle switch CK7105
1	toggle(MS332F, 3)	Toggle switch MS332F

Top

---

Transformers

Iron core transformers. The grey shaded area is the keep out region where the terminals are.

vitamins/transformers.scad Object definitions.

vitamins/transformer.scad Implementation.

tests/transformers.scad Code for this example.

Properties

Function	Description
tx_bobbin_height(type)	Bobbin height
tx_bobbin_offset(type)	Vertical offset of the bobbin from the centre of the laminations
tx_bobbin_radius(type)	Bobbin corner radius
tx_bobbin_width(type)	Bobbin width
tx_depth(type)	Bounding depth of the bobbin
tx_foot_depth(type)	Depth of the foot
tx_foot_thickness(type)	Thickness of the foot
tx_foot_width(type)	Width of the foot
tx_height(type)	Bounding height of the transformer
tx_lamination_depth(type)	Lamination depth
tx_lamination_height(type)	Lamination height
tx_part(type)	Part description
tx_screw(type)	Screw type
tx_width(type)	Bounding width of the core
tx_x_pitch(type)	Screw hole x pitch
tx_y_pitch(type)	Screw hole y pitch when four screws

Modules

Module	Description
transformer(type)	Draw specified transformer
transformer_hole_positions(type)	Position children at the mounting hole positions

Vitamins

Qty	Module call	BOM entry
1	transformer(CCM300)	Transformer Carroll & Meynell CCM300/230 isolation
1	transformer(SMALLTX)	Transformer Small mains

Top

---

Tubings

Tubing and sleeving. The internal diameter can be forced to stretch it over something.

vitamins/tubings.scad Object definitions.

vitamins/tubing.scad Implementation.

tests/tubings.scad Code for this example.

Properties

Function	Description
tubing_colour(type)	Colour
tubing_id(type)	Inside diameter
tubing_material(type)	Material description
tubing_od(type)	Outside diameter

Functions

Function	Description
tubing_or(type)	Outside radius

Modules

Module	Description
tubing(type, length = 15, forced_id = 0, center = true)	Draw specified tubing with optional forced internal diameter

Vitamins

Qty	Module call	BOM entry
1	tubing(CBNFIB10)	Carbon fiber OD 10mm ID 8mm x 15mm
1	tubing(HSHRNK16)	Heatshrink sleeving ID 1.6mm x 15mm
1	tubing(HSHRNK100)	Heatshrink sleeving ID 10mm x 15mm
1	tubing(HSHRNK24)	Heatshrink sleeving ID 2.4mm x 15mm
1	tubing(HSHRNK64)	Heatshrink sleeving ID 6.4mm x 15mm
1	tubing(NEOP85)	Neoprene tubing OD 8mm ID 5mm x 15mm
1	tubing(PTFE07)	PTFE sleeving OD 1.2mm ID 0.71mm x 15mm
1	tubing(PTFE20)	PTFE sleeving OD 2.6mm ID 2mm x 15mm
1	tubing(PTFE2_3)	PTFE tubing OD 3mm ID 2mm x 15mm
1	tubing(PF7)	PTFE tubing OD 4.6mm ID 3.84mm x 15mm
1	tubing(PTFE2_4)	PTFE tubing OD 4mm ID 2mm x 15mm
1	tubing(PTFE4_6)	PTFE tubing OD 6mm ID 4mm x 15mm
1	tubing(PVC64)	PVC aquarium tubing OD 6mm ID 4mm x 15mm
1	tubing(PVC85)	PVC aquarium tubing OD 8mm ID 5mm x 15mm

Top

---

Variacs

Variable auto transformers.

vitamins/variacs.scad Object definitions.

vitamins/variac.scad Implementation.

tests/variacs.scad Code for this example.

Properties

Function	Description
variac_bulge_dia(type)	Bulge to opposite edge
variac_bulge_width(type)	Width of the bulge
variac_dial_big_hole(type)	Central dial hole diameter
variac_dial_dia(type)	Dial diameter
variac_dial_hole_pitch(type)	Screw pitch for the dial
variac_dial_hole_r(type)	Dial screw hole radius
variac_dial_thickness(type)	Dial thickness
variac_diameter(type)	Body diameter
variac_height(type)	Body height
variac_screw(type)	Screw type
variac_screw_pitch(type)	Pitch of screws
variac_screws(type)	Number of screws
variac_shaft_dia(type)	Shaft diameter
variac_shaft_length(type)	Shaft length

Functions

Function	Description
variac_radius(type)	Body radius

Modules

Module	Description
variac(type, thickness = 3, dial = true)	Draw the specified variac with screws and possibly the dial when it is fixed and not rotating
variac_dial(type)	Draw the dial for the specified variac
variac_hole_positions(type, pitch = undef)	Position children at the screw positions
variac_holes(type, h = 100)	Drill panel holes for specified variac

Vitamins

Qty	Module call	BOM entry
1	variac(DURATRAKV5HM, 3)	Variac DURATRAK V5HM
1	variac(RAVISTAT1F1, 3)	Variac RAVISTAT 1F-1

Top

---

Veroboard

Veroboard with mounting holes, track breaks, removed tracks, solder points and components.

vitamins/veroboard.scad Implementation.

tests/veroboard.scad Code for this example.

Properties

Function	Description
vero_assembly(type)	Name of the assembly
vero_breaks(type)	Breaks in the tracks
vero_components(type)	List of named components and their positions
vero_fr4(type)	True if FR4 rather than SRBP
vero_holes(type)	Number of holes in each strip
vero_joints(type)	List of solder joints
vero_mounting_holes(type)	Positions of the mounting holes
vero_no_track(type)	Missing tracks
vero_pitch(type)	Hole pitch
vero_screw(type)	Mounting screw type
vero_strips(type)	Number of strips

Functions

Function	Description
vero_length(type)	Length of the board
vero_thickness(type)	Thickness of the substrate
vero_track_thickness(type)	Thickness of the tracks
vero_track_width(type)	The width of the tracks
vero_width(type)	Width of the board

Modules

Module	Description
vero_cutouts(type, angle = undef)	Make cutouts to clear components
vero_grid_pos(type, x, y)	Convert grid position to offset from the centre
vero_mounting_hole_positions(type)	Positions children at the mounting holes
vero_mounting_holes(type, h = 100)	Drill mounting holes in a panel
veroboard(type)	Draw specified veroboard with missing tracks and track breaks
veroboard_assembly(type, height, thickness, flip = false)	Draw the assembly with components and fasteners in place

Vitamins

Qty	Module call	BOM entry
2	idc_transition(2p54header, 10)	IDC transition header 10 x 2
4	nut(M3_nut, nyloc = true)	Nut M3 x 2.4mm nyloc
4	screw(M3_dome_screw, 25)	Screw M3 dome x 25mm
2	green_terminal(gt_2p54, 10)	Terminal block 10 way 0.1"
2	veroboard(z_vb)	Veroboard 5 holes x 22strips
8	washer(M3_washer)	Washer M3 x 7mm x 0.5mm

Printed

Qty	Filename
4	pcb_spacer30120.stl

Assemblies

Qty	Name
2	z_bed_terminal_assembly

Top

---

Washers

Washers, star washers, penny washers and printed washers.

If a washer is given a child, usually a screw or a nut, then it is placed on its top surface.

vitamins/washers.scad Object definitions.

vitamins/washer.scad Implementation.

tests/washers.scad Code for this example.

Properties

Function	Description
penny_washer(type)	Corresponding penny washer
spring_washer_diameter(type)	Spring washer size
spring_washer_thickness(type)	Spring washer thickness
star_washer_diameter(type)	Star version size
washer_diameter(type)	External diameter
washer_size(type)	Noiminal size
washer_soft(type)	True if rubber
washer_thickness(type)	Thickness

Functions

Function	Description
washer_colour(type)	Washer colour
washer_id(type)	Inside diameter
washer_radius(type)	Outside radius

Modules

Module	Description
penny_washer(type)	Draw penny version of specified plain washer
printed_washer(type, name = false)	Create printed washer
spring_washer(type)	Draw spring version of washer
star_washer(type)	Draw star version of washer
washer(type)	Draw specified washer

Vitamins

Qty	Module call	BOM entry
1	washer(M2_washer)	Washer M2 x 5mm x 0.3mm
1	washer(M2p5_washer)	Washer M2.5 x 5.9mm x 0.5mm
1	washer(M3_washer)	Washer M3 x 7mm x 0.5mm
1	washer(M3p5_washer)	Washer M3.5 x 8mm x 0.5mm
1	washer(M4_washer)	Washer M4 x 9mm x 0.8mm
1	washer(M5_washer)	Washer M5 x 10mm x 1mm
1	washer(M6_washer)	Washer M6 x 12.5mm x 1.5mm
1	washer(M8_washer)	Washer M8 x 17mm x 1.6mm
1	washer(M3_penny_washer)	Washer penny M3 x 12mm x 0.8mm
1	washer(M4_penny_washer)	Washer penny M4 x 14mm x 0.8mm
1	washer(M5_penny_washer)	Washer penny M5 x 20mm x 1.4mm
1	washer(M6_penny_washer)	Washer penny M6 x 26mm x 1.5mm
1	washer(M8_penny_washer)	Washer penny M8 x 30mm x 1.5mm
1	washer(M3_rubber_washer)	Washer rubber M3 x 10mm x 1.5mm
1	spring_washer(M2_washer)	Washer spring M2 x 0.5mm
1	spring_washer(M2p5_washer)	Washer spring M2.5 x 0.6mm
1	spring_washer(M3_washer)	Washer spring M3 x 1mm
1	spring_washer(M3p5_washer)	Washer spring M3.5 x 1mm
1	spring_washer(M4_washer)	Washer spring M4 x 1.2mm
1	spring_washer(M5_washer)	Washer spring M5 x 1.6mm
1	spring_washer(M6_washer)	Washer spring M6 x 1.6mm
1	spring_washer(M8_washer)	Washer spring M8 x 2mm
1	star_washer(M2_washer)	Washer star M2 x 0.3mm
1	star_washer(M2p5_washer)	Washer star M2.5 x 0.5mm
1	star_washer(M3_washer)	Washer star M3 x 0.5mm
1	star_washer(M3_rubber_washer)	Washer star M3 x 1.5mm
1	star_washer(M3p5_washer)	Washer star M3.5 x 0.5mm
1	star_washer(M4_washer)	Washer star M4 x 0.8mm
1	star_washer(M5_washer)	Washer star M5 x 1mm
1	star_washer(M6_washer)	Washer star M6 x 1.5mm
1	star_washer(M8_washer)	Washer star M8 x 1.6mm

Printed

Qty	Filename
1	M20_washer.stl
1	M25_washer.stl
2	M30_washer.stl
1	M35_washer.stl
1	M40_washer.stl
1	M50_washer.stl
1	M60_washer.stl
1	M80_washer.stl

Top

---

Wire

Just a BOM entry at the moment and cable bundle size functions for holes, plus cable ties.

vitamins/wire.scad Implementation.

tests/wire.scad Code for this example.

Functions

Function	Description
cable_bundle(cable)	Arrangement of a bundle in a flat cable clip
cable_height(cable)	Height in flat clip
cable_radius(cable)	Radius of a bundle of wires, see http://mathworld.wolfram.com/CirclePacking.html.
cable_width(cable)	Width in flat clip
cable_wire_size(cable)	Size of each wire in a bundle
cable_wires(cable)	Number of wires in a bindle
wire_hole_radius(cable)	Radius of a hole to accept a bundle of wires

Modules

Module	Description
cable_tie(cable_r, thickness)	A ziptie threaded around cable radius cable_r and through a panel with specified thickness.
cable_tie_holes(cable_r, h = 100)	Holes to thread a ziptie through a panel to make a cable tie.
mouse_hole(cable, h = 100, teardrop = false)	A mouse hole to allow a panel to go over a wire bundle.
ribbon_cable(ways, length)	Add ribbon cable to the BOM
wire(colour, strands, length, strand = 0.2)	Add stranded wire to the BOM

Vitamins

Qty	Module call	BOM entry
1		Wire black 7/0.2mm strands, length 90mm
1		Wire blue 7/0.2mm strands, length 90mm
1		Wire brown 7/0.2mm strands, length 90mm
1		Wire green 7/0.2mm strands, length 90mm
1		Wire orange 7/0.2mm strands, length 90mm
1		Wire red 7/0.2mm strands, length 90mm
1		Wire yellow 7/0.2mm strands, length 90mm
1	ziptie(small_ziptie, 2.1)	Ziptie 2.5mm x 100mm min length

Top

---

Zipties

Cable zipties.

vitamins/zipties.scad Object definitions.

vitamins/ziptie.scad Implementation.

tests/zipties.scad Code for this example.

Properties

Function	Description
ziptie_colour(type)	Colour
ziptie_latch(type)	Latch dimensions
ziptie_tail(type)	The length without teeth
ziptie_thickness(type)	Thickness
ziptie_width(type)	Width

Modules

Module	Description
ziptie(type, r, t = 0)	Draw specified ziptie wrapped around radius r and optionally through panel thickness t

Vitamins

Qty	Module call	BOM entry
1	ziptie(small_ziptie, 5)	Ziptie 2.5mm x 100mm min length
1	ziptie(ziptie_3p6mm, 5)	Ziptie 3.6mm x 100mm min length
1	ziptie(ziptie_3mm, 5)	Ziptie 3mm x 100mm min length

Top

---

Box

A box made from routed or laser cut sheet sheets and printed profiles and bezels. It can be arbitrarily large compared to the 3D printed parts because they can be cut into interlocking sections and solvent welded together. The box panels can be customised to have holes and parts mounted on them by overriding the definitions of box_base(), box_front(), etc.

box.scad should be used and box_assembly.scad included.

A box is defined with a list that specifies the inside dimensions, top, bottom and side sheet materials, the screw type and printed part wall thickness. This diagram shows how the various dimensions are labelled:

Normally the side sheets are the same type but they can be overridden individually as long as the substitute has the same thickness.

printed/box.scad Implementation.

tests/box.scad Code for this example.

Properties

Function	Description
box_base_sheet(type)	Sheet type for the bottom
box_depth(type)	Internal depth
box_feet(type)	True to enable feet on the bottom bezel
box_height(type)	Internal height
box_screw(type)	Screw type to be used at the corners
box_sheets(type)	Sheet type used for the sides
box_shelf_screw(type)	Screw type to hold a shelf
box_top_sheet(type)	Sheet type for the top
box_wall(type)	Wall thickness of 3D parts
box_width(type)	Internal width

Functions

Function	Description
box(screw, wall, sheets, top_sheet, base_sheet, size, feet = false, shelf_screw = M3_dome_screw)	Construct a property list for a box.
box_bezel_height(type, bottom)	Bezel height for top or bottom
box_corner_gap(type)	Gap between box_sheets at the corners to connect inside and outside profiles
box_inset(type)	How much the bezel intrudes on the specified width and length, away from the corners
box_intrusion(type)	Corner profile intrusion
box_margin(type)	How much the bezel intrudes on the specified height
box_outset(type)	How much the bezel expands the specified internal size

Modules

Module	Description
box_back(type)	Default back, can be overridden to customise
box_back_blank(type, sheet = false)	Generates a 2D template for the back sheet, sheet can be set to override the type
box_base(type)	Default base, can be overridden to customise
box_base_blank(type)	Generates a 2D template for the base sheet
box_bezel(type, bottom)	Generates top and bottom bezel STLs
box_bezel_section(type, bottom, rows, cols, x, y)	Generates interlocking sections of the bezel to allow it to be bigger than the printer
box_corner_profile(type)	Generates the corner profile STL for 3D printing.
box_corner_profile_2D(type)	The 2D shape of the corner profile.
box_corner_profile_section(type, section, sections)	Generates interlocking sections of the corner profile to allow it to be taller than the printer
box_corner_profile_sections(type, section, sections)	Generate four copies of a corner profile section
box_front(type)	Default front, can be overridden to customise
box_front_blank(type, sheet = false)	Generates a 2D template for the front sheet, sheet can be set to override the type
box_left(type)	Default left side, can be overridden to customise
box_left_blank(type, sheet = false)	Generates a 2D template for the left sheet, sheet can be set to override the type
box_right(type)	Default right side, can be overridden to customise
box_right_blank(type, sheet = false)	Generates a 2D template for the right sheet, sheet can be set to override the type
box_shelf_blank(type, sheet = false)	Generates a 2D template for a shelf sheet
box_shelf_bracket(type, screw_positions, wall = undef)	Generates a shelf bracket, the first optional child is a 2D cutout and the second 3D cutouts
box_shelf_bracket_section(type, rows, cols, x, y)	Generates sections of the shelf bracket to allow it to be bigger than the printer
box_shelf_screw_positions(type, screw_positions, thickness = 0, wall = undef)	Place children at the shelf screw positions
box_top(type)	Default top, can be overridden to customise
box_top_blank(type)	Generates a 2D template for the top sheet
grill(width, height, r = 1000, poly = false, h = 0)	A staggered array of 5mm holes to make grills in sheets. Can be constrained to be circular. Set poly true for printing, false for milling.

Vitamins

Qty	Module call	BOM entry
8	insert(F1BM3)	Heatfit insert M3
4	screw(M3_dome_screw, 16)	Screw M3 dome x 16mm
4	screw(M3_dome_screw, 20)	Screw M3 dome x 20mm
2	sheet(DiBond, 143, 63, 1)	Sheet DiBond 143mm x 63mm x 3mm
1	sheet(DiBond6, 150, 100, 2.9)	Sheet DiBond 150mm x 100mm x 6mm
2	sheet(DiBond, 93, 63, 1)	Sheet DiBond 93mm x 63mm x 3mm
1	sheet(PMMA3, 150, 100, 2.9)	Sheet acrylic 150mm x 100mm x 3mm
8	washer(M3_washer)	Washer M3 x 7mm x 0.5mm
8	star_washer(M3_washer)	Washer star M3 x 0.5mm

Printed

Qty	Filename
10	bottom_bezel.stl
4	box_corner_profile.stl
1	top_bezel.stl

Routed

Qty	Filename
1	box_back.dxf
1	box_base.dxf
1	box_front.dxf
1	box_left.dxf
1	box_right.dxf
1	box_top.dxf

Assemblies

Qty	Name
1	box_assembly

Top

---

Butt_box

A box made from CNC cut panels butted together using printed fixing blocks. Useful for making large boxes with minimal 3D printing. More blocks are added as the box gets bigger.

Needs to be included rather than used to allow the panel definitions to be overridden to add holes and mounted components.

A list specifies the internal dimensions, screw type, top, bottom and side sheet types and the block maximum spacing.

• An optional name can be specified to allow more then one box in a project.
• An optional list of fixing blocks to be omitted can be given.
• Star washers can be omitted by setting the 11th parameter to false.

Uses fixing blocks and corner blocks.

printed/butt_box.scad Implementation.

tests/butt_box.scad Code for this example.

Properties

Function	Description
bbox_base_sheet(type)	Sheet type for the base
bbox_depth(type)	Internal depth
bbox_height(type)	Internal height
bbox_name(type)	Optional name if there is more than one box in a project
bbox_screw(type)	Screw type for corner blocks
bbox_sheets(type)	Sheet type for the sides
bbox_skip_blocks(type)	List of fixing blocks to skip, used to allow a hinged panel for example
bbox_span(type)	Maximum span between fixing blocks
bbox_top_sheet(type)	Sheet type for the top
bbox_width(type)	Internal width
star_washers(type)	Set to false to remove star washers.

Functions

Function	Description
bbox(screw, sheets, base_sheet, top_sheet, span, size, name = "bbox", skip_blocks = [], star_washers = true)	Construct the property list for a butt_box
bbox_area(type)	Internal surdface area in m^2
bbox_volume(type)	Internal volume in litres

Modules

Module	Description
_bbox_assembly(type, top = true, base = true, left = true, right = true, back = true, front = true)	The box assembly, wrap with a local copy without parameters
bbox_back(type)	Default back, can be overridden to customise
bbox_back_blank(type, sheet = false)	2D template for the back
bbox_base(type)	Default base, can be overridden to customise
bbox_base_blank(type)	2D template for the base
bbox_front(type)	Default front, can be overridden to customise
bbox_front_blank(type, sheet = false, width = 0)	2D template for the front
bbox_left(type)	Default left side, can be overridden to customise
bbox_left_blank(type, sheet = false)	2D template for the left side
bbox_right(type)	Default right side, can be overridden to customise
bbox_right_blank(type, sheet = false)	2D template for the right side
bbox_shelf_blank(type)	2D template for a shelf
bbox_top(type)	Default top, can be overridden to customise
bbox_top_blank(type)	2D template for the top

Vitamins

Qty	Module call	BOM entry
48	insert(F1BM3)	Heatfit insert M3
36	screw(M3_dome_screw, 10)	Screw M3 dome x 10mm
4	screw(M3_dome_screw, 12)	Screw M3 dome x 12mm
8	screw(M3_dome_screw, 16)	Screw M3 dome x 16mm
2	sheet(DiBond, 303, 126)	Sheet DiBond 303mm x 126mm x 3mm
1	sheet(DiBond, 400, 126)	Sheet DiBond 400mm x 126mm x 3mm
1	sheet(DiBond6, 400, 300, 1)	Sheet DiBond 400mm x 300mm x 6mm
1	sheet(DiBond, 406, 129)	Sheet DiBond 406mm x 129mm x 3mm
1	sheet(PMMA3, 406, 303)	Sheet acrylic 406mm x 303mm x 3mm
48	washer(M3_washer)	Washer M3 x 7mm x 0.5mm
48	star_washer(M3_washer)	Washer star M3 x 0.5mm

Printed

Qty	Filename
8	corner_block_M30.stl
8	fixing_block_M30.stl

Routed

Qty	Filename
1	bbox_back.dxf
1	bbox_base.dxf
1	bbox_front.dxf
1	bbox_left.dxf
1	bbox_right.dxf
1	bbox_top.dxf

Assemblies

Qty	Name
1	bbox_assembly
8	corner_block_M30_assembly
8	fixing_block_M30_assembly

Top

---

Cable_grommets

Printed cable grommets for passing cables through panels avoiding sharp edges and in the case of conductive panels, an extra layer of insulation.

printed/cable_grommets.scad Implementation.

tests/cable_grommets.scad Code for this example.

Modules

Module	Description
mouse_grommet(r, thickness)	Make the STL for a mouse grommet
mouse_grommet_hole(r, h = 50, z = undef, expand = wall + clearance)	Make a hole for a mouse grommet
ribbon_grommet(ways, thickness)	Generate the STL for a printed ribbon grommet
ribbon_grommet_hole(ways, h = 50, expand = true)	Generate a hole for a ribbon grommet
round_grommet_bottom(diameter, od = undef)	Generate the STL for a round grommet bottom half
round_grommet_hole(diameter, h = 100)	Make a hole for a round grommet
round_grommet_top(diameter, thickness, od = undef)	Generate the STL for a round grommet top half

Printed

Qty	Filename
1	mouse_grommet_50_3.stl
1	ribbon_grommet_20_3.stl
1	round_grommet_bottom_60.stl
1	round_grommet_top_60_3.stl

Top

---

Camera_housing

Housings for PCB cameras.

printed/camera_housing.scad Implementation.

tests/camera_housing.scad Code for this example.

Functions

Function	Description
cam_front_size(cam)	Outside dimensions of the case

Modules

Module	Description
camera_assembly(cam, angle = 0)	Camera case assembly
camera_back(cam)	Make the STL for a camera case back
camera_bracket(cam)	Make the STL for the camera bracket
camera_bracket_position(cam)	Position children at the bracket position
camera_bracket_screw_positions(cam)	Position children at the bracket screw positions
camera_front(cam, hinge = 0)	Make the STL for a camera case front
rpi_camera_focus_ring_stl()	Focus ring the glue onto RPI lens

Vitamins

Qty	Module call	BOM entry
7	nut(M2_nut, nyloc = true)	Nut M2 x 1.6mm nyloc
10	nut(M3_nut, nyloc = true)	Nut M3 x 2.4mm nyloc
1	camera(rpi_camera_v1)	Raspberry Pi camera V1
1	camera(rpi_camera_v2)	Raspberry Pi camera V2
1	camera(rpi_camera)	Raspberry Pi focusable camera
7	screw(M2_cap_screw, 10)	Screw M2 cap x 10mm
4	screw(M3_cap_screw, 16)	Screw M3 cap x 16mm
4	screw(M3_dome_screw, 10)	Screw M3 dome x 10mm
2	screw(M3_dome_screw, 12)	Screw M3 dome x 12mm
7	washer(M2_washer)	Washer M2 x 5mm x 0.3mm
16	washer(M3_washer)	Washer M3 x 7mm x 0.5mm

Printed

Qty	Filename
1	camera_back_rpi_camera.stl
1	camera_back_rpi_camera_v1.stl
1	camera_back_rpi_camera_v2.stl
1	camera_bracket_rpi_camera.stl
1	camera_bracket_rpi_camera_v1.stl
1	camera_bracket_rpi_camera_v2.stl
1	camera_front_rpi_camera.stl
1	camera_front_rpi_camera_v1.stl
1	camera_front_rpi_camera_v2.stl

Assemblies

Qty	Name
1	camera_rpi_camera_assembly
1	camera_rpi_camera_v1_assembly
1	camera_rpi_camera_v2_assembly

Top

---

Carriers

Adapts ESP12 modules and various small PCBs to 0.1" grid. See https://hydraraptor.blogspot.com/2018/04/esp-12-module-breakout-adaptor.html.

printed/carriers.scad Implementation.

tests/carriers.scad Code for this example.

Functions

Function	Description
carrier_height()	Height of PCB carrier

Modules

Module	Description
ESP12F_carrier_stl()	Generate the STL for an ESP12 carrier
MT3608_carrier_stl()	Generate the STL for an MT3608 carrier, two required
TP4056_carrier_stl()	Generate the STL for an TP4056 carrier, two required

Printed

Qty	Filename
1	ESP12F_carrier.stl
1	MT3608_carrier.stl
1	TP4056_carrier.stl

Top

---

Corner_block

Corner brackets using threaded inserts for fastening three sheets together at right angles. Defaults to M3 but other screws sizes can be specified provided they have inserts defined.

See butt_box for an example of usage.

Note that the block with its inserts is defined as a sub assembly, but its fasteners get added to the parent assembly.

Specific fasteners can be omitted by setting a side's thickness to 0 and the block omitted by setting show_block to false. This allows the block and one set of fasteners to be on one assembly and the other fasteners on the mating assemblies.

Star washers can be omitted by setting star_washers to false.

printed/corner_block.scad Implementation.

tests/corner_block.scad Code for this example.

Functions

Function	Description
corner_block_h_holes(screw = def_screw)	List of transforms to side holes
corner_block_hole_offset(screw = def_screw)	Hole offset from the edge
corner_block_holes(screw)	List of transforms to all holes
corner_block_screw()	Default screw type
corner_block_v_hole(screw = def_screw)	Transform to bottom hole
corner_block_width(screw = def_screw)	Block width, depth and height

Modules

Module	Description
corner_block(screw = def_screw, name = false)	Generate the STL for a printed corner block
corner_block_assembly(screw = def_screw, name = false)	The printed block with inserts
corner_block_h_holes(screw = def_screw, index = undef)	Place children at the side screw holes
corner_block_holes(screw = def_screw)	Place children at all the holes
corner_block_v_hole(screw = def_screw)	Place children at the bottom screw hole
fastened_corner_block_assembly(thickness, screw = def_screw, thickness_below = undef, thickness_side2 = undef, name = false, show_block = true, star_washers = true)	Printed block with all fasteners

Vitamins

Qty	Module call	BOM entry
3	insert(F1BM2)	Heatfit insert M2
3	insert(F1BM2p5)	Heatfit insert M2.5
3	insert(F1BM3)	Heatfit insert M3
3	insert(F1BM4)	Heatfit insert M4
3	screw(M2_cap_screw, 8)	Screw M2 cap x 8mm
3	screw(M2p5_pan_screw, 10)	Screw M2.5 pan x 10mm
3	screw(M3_dome_screw, 10)	Screw M3 dome x 10mm
3	screw(M4_dome_screw, 12)	Screw M4 dome x 12mm
3	washer(M2_washer)	Washer M2 x 5mm x 0.3mm
3	washer(M2p5_washer)	Washer M2.5 x 5.9mm x 0.5mm
3	washer(M3_washer)	Washer M3 x 7mm x 0.5mm
3	washer(M4_washer)	Washer M4 x 9mm x 0.8mm
3	star_washer(M2_washer)	Washer star M2 x 0.3mm
3	star_washer(M2p5_washer)	Washer star M2.5 x 0.5mm
3	star_washer(M3_washer)	Washer star M3 x 0.5mm
3	star_washer(M4_washer)	Washer star M4 x 0.8mm

Printed

Qty	Filename
1	corner_block_M20.stl
1	corner_block_M25.stl
1	corner_block_M30.stl
1	corner_block_M40.stl

Assemblies

Qty	Name
1	corner_block_M20_assembly
1	corner_block_M25_assembly
1	corner_block_M30_assembly
1	corner_block_M40_assembly

Top

---

Door_hinge

Door hinges to hang an acrylic sheet door on a 3D printer, default 6mm thick.

The screws are tapped into the acrylic. Rubber door sealing strip is used to make it airtight and a door_latch holds it closed.

printed/door_hinge.scad Implementation.

tests/door_hinge.scad Code for this example.

Functions

Function	Description
door_hinge_pin_x()	X offset of the hinge pin
door_hinge_pin_y()	Y offset of the hinge pin
door_hinge_screw()	Screw type used for hinge pin
door_hinge_stat_length()	Length of the stationary part
door_hinge_stat_screw()	Screw use to fasten the stationary part
door_hinge_stat_width()	Width of the stationary part

Modules

Module	Description
door_hinge(door_thickness)	Generates STL for the moving part of the hinge
door_hinge_assembly(top, door_thickness = 6)	The moving assembly that goes on the door
door_hinge_hole_positions(dir = 0)	Position chidren at the door hole positions
door_hinge_parts_stl()	Generates the STL for both parts of the hinge
door_hinge_stat_hole_positions(dir = 0)	Position children over the screws holes of the stationary part
door_hinge_stat_stl()	Generates the STL for the stationary part
door_hinge_static_assembly(top, sheet_thickness = 3)	The stationary assembly

Vitamins

Qty	Module call	BOM entry
4	nut(M4_nut, nyloc = true)	Nut M4 x 3.2mm nyloc
2	screw(M3_cap_screw, 35)	Screw M3 cap x 35mm
4	screw(M3_dome_screw, 10)	Screw M3 dome x 10mm
4	screw(M4_dome_screw, 16)	Screw M4 dome x 16mm
1	sheet(PMMA6, 50, 50, 3)	Sheet acrylic 50mm x 50mm x 6mm
8	washer(M3_washer)	Washer M3 x 7mm x 0.5mm
8	washer(M4_washer)	Washer M4 x 9mm x 0.8mm

Printed

Qty	Filename
2	door_hinge_6.stl
2	door_hinge_stat.stl

Top

---

Door_latch

Door latch for 6mm acrylic door for 3D printer. See door_hinge.

printed/door_latch.scad Implementation.

tests/door_latch.scad Code for this example.

Functions

Function	Description
door_latch_offset()	Offset of the axle from the door edge
door_latch_screw()	The screw used for the axle

Modules

Module	Description
door_latch_assembly(sheet_thickness = 3)	The assembly for a specified sheet thickess
door_latch_stl()	Generates the STL for the printed part

Vitamins

Qty	Module call	BOM entry
1	nut(M4_nut, nyloc = true)	Nut M4 x 3.2mm nyloc
1	screw(M4_hex_screw, 20)	Screw M4 hex x 20mm
2	washer(M4_washer)	Washer M4 x 9mm x 0.8mm

Printed

Qty	Filename
1	door_latch.stl

Top

---

Drag_chain

Parametric cable drag chain to limit the bend radius of a cable run.

Each link has a maximum bend angle of 45°, so the mininium radius is proportional to the link length.

The travel property is how far it can move in each direction, i.e. half the maximum travel if the chain is mounted in the middle of the travel.

The ends can have screw lugs with four screw positions to choose from, specified by a list of two arrays of four bools. If none are enabled then a child object is expected to customise the end and this gets unioned with the blank end. If both ends are customised then two children are expected. Each child is called twice, once with $fasteners set to 0 to augment the STL and again with $fasteners set to 1 to add to the assembly, for example to add inserts.

printed/drag_chain.scad Implementation.

tests/drag_chain.scad Code for this example.

Properties

Function	Description
drag_chain_bwall(type)	Bottom wall
drag_chain_name(type)	The name to allow more than one in a project
drag_chain_screw(type)	Mounting screw for the ends
drag_chain_screw_lists(type)	Two lists of four bools to say which screws positions are used
drag_chain_size(type)	The internal size and link length
drag_chain_travel(type)	X travel
drag_chain_twall(type)	Top wall
drag_chain_wall(type)	Side wall thickness

Functions

Function	Description
drag_chain(name, size, travel, wall = 1.6, bwall = 1.5, twall = 1.5, screw = M2_cap_screw, screw_lists = [[1,0,0,1],[1,0,0,1]])	Constructor
drag_chain_clearance()	Clearance around joints.
drag_chain_outer_size(type)	Link outer dimensions
drag_chain_radius(type)	The bend radius at the pivot centres
drag_chain_z(type)	Outside dimension of a 180 bend
screw_lug_radius(screw)	Radius of a screw lug

Modules

Module	Description
drag_chain_assembly(type, pos = 0)	Drag chain assembly
drag_chain_link(type, start = false, end = false, check_kids = true)	One link of the chain, special case for start and end
drag_chain_screw_positions(type, end)	Place children at the screw positions, end = 0 for the start, 1 for the end
screw_lug(screw, h = 0)	Create a D shaped lug for a screw

Printed

Qty	Filename
14	x_drag_chain_link.stl
1	x_drag_chain_link_end.stl
1	x_drag_chain_link_start.stl

Assemblies

Qty	Name
1	x_drag_chain_assembly

Top

---

Fan_guard

Pintable fan finger guard to match the specified fan. To be included, not used.

The ring spacing as well as the number of spokes can be specified, if zero a gasket is generated instead of a guard.

printed/fan_guard.scad Implementation.

tests/fan_guard.scad Code for this example.

Functions

Function	Description
fan_guard_corner_r(type)	Corner radius of the guard
fan_guard_thickness()	Default thickness
fan_guard_width(type)	Width of the guard

Modules

Module	Description
fan_guard(type, name = false, thickness = fan_guard_thickness()	Generate the STL

Printed

Qty	Filename
1	fan_guard_120.stl
1	fan_guard_17.stl
1	fan_guard_25.4.stl
1	fan_guard_30.stl
1	fan_guard_40.stl
1	fan_guard_50.stl
2	fan_guard_60.stl
1	fan_guard_70.stl
2	fan_guard_80.stl

Top

---

Fixing_block

Fixing block to mount two sheets at right angles using threaded inserts. Defaults to M3 but other screw sizes can be specified provided they have inserts defined.

See butt_box for an example of usage.

Note that the block with its inserts is defined as a sub assembly, but its fasteners get added to the parent assembly.

Specific fasteners can be omitted by setting a side's thickness to 0 and the block omitted by setting show_block to false. This allows the block and one set of fasteners to be on one assembly and the other fasteners on the mating assemblies.

Star washers can be omitted by setting star_washers to false.

printed/fixing_block.scad Implementation.

tests/fixing_block.scad Code for this example.

Functions

Function	Description
fixing_block_depth(screw = def_screw)	Depth given screw size
fixing_block_h_hole(screw = def_screw)	Returns transform to position the horizontal screw
fixing_block_height(screw = def_screw)	Height given screw size, same as depth
fixing_block_holes(screw)	Returns a list of transforms to position all the screws
fixing_block_screw()	Default screw type
fixing_block_v_holes(screw = def_screw)	Returns a list of transforms to position the vertical screws
fixing_block_width(screw = def_screw)	Width given screw size

Modules

Module	Description
fastened_fixing_block_assembly(thickness, screw = def_screw, screw2 = undef, thickness2 = undef, show_block = true, star_washers = true)	Assembly with fasteners in place
fixing_block(screw = def_screw)	Generate the STL
fixing_block_assembly(screw = def_screw)	Printed part with the inserts inserted
fixing_block_h_hole(screw = def_screw)	Position children on the horizontal hole
fixing_block_h_hole_2D(screw = def_screw)	Position 2D child on the horizontal hole
fixing_block_holes(screw = def_screw)	Position children on all the holes
fixing_block_v_holes(screw = def_screw)	Position children on the vertical holes

Vitamins

Qty	Module call	BOM entry
3	insert(F1BM2)	Heatfit insert M2
3	insert(F1BM2p5)	Heatfit insert M2.5
3	insert(F1BM3)	Heatfit insert M3
3	insert(F1BM4)	Heatfit insert M4
3	screw(M2_cap_screw, 8)	Screw M2 cap x 8mm
3	screw(M2p5_pan_screw, 10)	Screw M2.5 pan x 10mm
3	screw(M3_dome_screw, 10)	Screw M3 dome x 10mm
3	screw(M4_dome_screw, 16)	Screw M4 dome x 16mm
3	washer(M2_washer)	Washer M2 x 5mm x 0.3mm
3	washer(M2p5_washer)	Washer M2.5 x 5.9mm x 0.5mm
3	washer(M3_washer)	Washer M3 x 7mm x 0.5mm
3	washer(M4_washer)	Washer M4 x 9mm x 0.8mm
3	star_washer(M2_washer)	Washer star M2 x 0.3mm
3	star_washer(M2p5_washer)	Washer star M2.5 x 0.5mm
3	star_washer(M3_washer)	Washer star M3 x 0.5mm
3	star_washer(M4_washer)	Washer star M4 x 0.8mm

Printed

Qty	Filename
1	fixing_block_M20.stl
1	fixing_block_M25.stl
1	fixing_block_M30.stl
1	fixing_block_M40.stl

Assemblies

Qty	Name
1	fixing_block_M20_assembly
1	fixing_block_M25_assembly
1	fixing_block_M30_assembly
1	fixing_block_M40_assembly

Top

---

Flat_hinge

A parametric flat hinge. A piece of filament can be used for the hinge pin.

The width, depth, thickness, number and type of screws, number of knuckles, knuckle diameter, pin diameter and clearance can all be varied. A margin between the screws and the knuckle edge can be enforced to allow the hinge to bend all the way back to 270° from closed.

Opening the test in OpenSCAD with its customiser enabled allows these parameters to be played with.

Note setting thickness1 or thickness2 to zero in the hinge_fastened_assembly() removes the screws from one side or the other and setting show_hinge to false removes the hinge. This allows the hinges and one set of screws to belong to one assembly and the other set of screws to another assembly.

printed/flat_hinge.scad Implementation.

tests/flat_hinge.scad Code for this example.

Properties

Function	Description
hinge_clearance(type)	Clearance between knuckles
hinge_depth(type)	Depth of each leaf
hinge_knuckle_dia(type)	The knuckle diameter
hinge_knuckles(type)	How many knuckles
hinge_margin(type)	How far to keep the screws from the knuckes
hinge_pin_dia(type)	The pin diameter
hinge_screw(type)	Screw type to mount it
hinge_screws(type)	How many screws
hinge_thickness(type)	Thickness of the leaves
hinge_width(type)	Width

Functions

Function	Description
flat_hinge(name, size, pin_d, knuckle_d, knuckles, screw, screws, clearance, margin)	Construct the property list for a flat hinge.

Modules

Module	Description
hinge_both(type)	Both parts together for printing
hinge_fastened_assembly(type, thickness1, thickness2, angle, show_hinge = true)	Assembled hinge with its fasteners
hinge_male(type, female = false)	The half with the stationary pin
hinge_screw_positions(type)	Place children at the screw positions

Vitamins

Qty	Module call	BOM entry
1		Hinge pin 20 x 2.85mm
1		Hinge pin 50 x 4mm
14	nut(M3_nut, nyloc = true)	Nut M3 x 2.4mm nyloc
4	screw(M3_dome_screw, 10)	Screw M3 dome x 10mm
10	screw(M3_dome_screw, 12)	Screw M3 dome x 12mm
28	washer(M3_washer)	Washer M3 x 7mm x 0.5mm

Printed

Qty	Filename
1	hinge_female_big.stl
1	hinge_female_small.stl
1	hinge_male_big.stl
1	hinge_male_small.stl

Assemblies

Qty	Name
1	hinge_big_assembly
1	hinge_small_assembly

Top

---

Foot

Customisable printed rubber feet for equipment cases. The insert variant is better for solid feet because inserts don't grip well in rubber.

printed/foot.scad Implementation.

tests/foot.scad Code for this example.

Properties

Function	Description
foot_diameter(type = foot)	Outside maximum diameter
foot_height(type = foot)	Total height
foot_rad(type = foot)	Rounded corner radius
foot_screw(type = foot)	Screw type
foot_slant(type = foot)	Taper angle
foot_thickness(type = foot)	Thickness under the screw

Functions

Function	Description
Foot(d, h, t, r, screw, slant = 10)	Construct a foot property list
insert_foot()	Default foot with insert

Modules

Module	Description
fastened_insert_foot_assembly(t = 3, type = insert_foot)	Assembly with fasteners in place for specified sheet thickness
foot(type = foot)	Generate STL
foot_assembly(t = 0, type = foot, flip = false)	Assembly with fasteners in place for specified sheet thickness
insert_foot(type = insert_foot)	Generate STL for foot with insert
insert_foot_assembly(type = insert_foot)	Printed part with insert in place

Vitamins

Qty	Module call	BOM entry
1	insert(F1BM3)	Heatfit insert M3
1	nut(M4_nut, nyloc = true)	Nut M4 x 3.2mm nyloc
1	screw(M3_cap_screw, 8)	Screw M3 cap x 8mm
1	screw(M4_cap_screw, 16)	Screw M4 cap x 16mm
1	washer(M3_washer)	Washer M3 x 7mm x 0.5mm
2	washer(M4_washer)	Washer M4 x 9mm x 0.8mm
1	star_washer(M3_washer)	Washer star M3 x 0.5mm

Printed

Qty	Filename
1	foot.stl
1	insert_foot.stl

Assemblies

Qty	Name
1	insert_foot_assembly

Top

---

Handle

Printed handle that can be printed without needing support material due to its truncated teardrop profile.

printed/handle.scad Implementation.

tests/handle.scad Code for this example.

Functions

Function	Description
handle_height()	Total height
handle_length()	Outside length
handle_screw()	The screw type
handle_width()	The width, i.e. diameter

Modules

Module	Description
handle_assembly()	Printed part with inserts in place
handle_fastened_assembly(thickness)	Assembly with fasteners in place
handle_holes(h = 100)	Drills holes for the screws
handle_screw_positions()	Position children at the screw positions
handle_stl()	generate the STL

Vitamins

Qty	Module call	BOM entry
2	insert(F1BM4)	Heatfit insert M4
2	screw(M4_cap_screw, 16)	Screw M4 cap x 16mm
2	washer(M4_washer)	Washer M4 x 9mm x 0.8mm
2	star_washer(M4_washer)	Washer star M4 x 0.8mm

Printed

Qty	Filename
1	handle.stl

Assemblies

Qty	Name
1	handle_assembly

Top

---

PCB_mount

A frame to mount a PCB by its corners when it has no mounting holes. The stl must be given a parameterless wrapper in the project that uses it.

printed/pcb_mount.scad Implementation.

tests/PCB_mount.scad Code for this example.

Functions

Function	Description
pcb_mount_length(pcb)	Outside length of the mount
pcb_mount_width(pcb)	Outside width of the mount
pillar_x_pitch(pcb)	x pitch of screw pillars
pillar_y_pitch(pcb)	y pitch of screw pillars

Modules

Module	Description
pcb_mount(pcb, height = 5, washers = true)	Make the STL of a pcb mount for the specified PCB.
pcb_mount_assembly(pcb, thickness, height = 5)	A PCB mount assembly with fasteners
pcb_mount_holes(pcb, h = 0)	Drill holes for PCB mount
pcb_mount_screw_positions(pcb)	Positions of the screws and pillars
pcb_mount_washer_stl()	A plastic washer to clamp a PCB

Vitamins

Qty	Module call	BOM entry
4	nut(M3_nut, nyloc = true)	Nut M3 x 2.4mm nyloc
1	pcb(PI_IO)	PI_IO V2
1	pin_socket(2p54header, 13, 2)	Pin socket 13 x 2
4	screw(M3_cap_screw, 16)	Screw M3 cap x 16mm
3	terminal_35(2)	Terminal block 2 way 3.5mm
4	washer(M3_washer)	Washer M3 x 7mm x 0.5mm

Printed

Qty	Filename
1	pcb_mount_PI_IO_5.stl

Top

---

Press_fit

Utility for making printed press fit connectors to join printed parts.

Add solvent or glue to make a permanent fixture.

printed/press_fit.scad Implementation.

tests/press_fit.scad Code for this example.

Modules

Module	Description
press_fit_peg(h, w = 5, horizontal = false)	Make a rounded chamfered peg for easy insertion
press_fit_socket(w = 5, h = 50, horizontal = false)	Make a square hole to accept a peg

Top

---

Printed_box

A fully parametric 3D printed case that can be customised with cutouts and additions specified by children.

The walls can be made wavy, which possibly reduces warping when printing and looks nice, however if holes need to be made in the sides you can't print a wavy bridge. Any holes need to be surrounded by a 45° chamfer to make the bridges straight. See the mounting points for the feet in the first example.

It can also have printed feet on the base with the screws doubling up to hold the base on.

printed/printed_box.scad Implementation.

tests/printed_box.scad Code for this example.

Properties

Function	Description
pbox_base(type)	Base thickness, can be zero for no base
pbox_base_screw(type)	Screw type if no feet
pbox_depth(type)	Internal depth
pbox_foot(type)	Printed foot, can be false to suppress feet
pbox_height(type)	Internal height
pbox_name(type)	Name to allow more than one box in a project
pbox_radius(type)	Internal corner radius
pbox_ridges(type)	Ridge wavelength and amplitude
pbox_top(type)	Top thickness
pbox_wall(type)	Wall thickness
pbox_width(type)	Internal width

Functions

Function	Description
pbox(name, wall, top_t, base_t, radius, size, foot = false, screw = false, ridges = [0, 0])	Construct a printed box property list
pbox_inclusion(type)	How far the ledge for the base extends inwards
pbox_insert(type)	The insert for the base screws
pbox_screw(type)	Foot screw if got feet else base_screw
pbox_screw_inset(type)	How far the base screws are inset
pbox_screw_length(type, panel_thickness = 0)	Length of the base screw
pbox_total_height(type)	Total height including base overlap
pbox_washer(type)	The washer for the base screws

Modules

Module	Description
pbox(type)	Generate the STL for the main case
pbox_base(type)	Generate the STL for the base
pbox_base_screws(type, thickness = 0)	Place the screws and feet
pbox_inserts(type)	Place the inserts for the base screws
pbox_outer_shape(type)	2D outer shape of the box
pbox_screw_positions(type)	Place children at base screw positions

Vitamins

Qty	Module call	BOM entry
4	insert(F1BM2)	Heatfit insert M2
4	insert(F1BM3)	Heatfit insert M3
4	screw(M2_cap_screw, 6)	Screw M2 cap x 6mm
3	screw(M3_pan_screw, 6)	Screw M3 pan x 6mm
4	screw(M3_pan_screw, 10)	Screw M3 pan x 10mm
4	washer(M2_washer)	Washer M2 x 5mm x 0.3mm
7	washer(M3_washer)	Washer M3 x 7mm x 0.5mm

Printed

Qty	Filename
1	box1.stl
1	box1_base.stl
7	foot.stl
1	smooth_box.stl
1	smooth_box_base.stl

Assemblies

Qty	Name
1	box1_assembly
1	box2_assembly

Top

---

PSU_shroud

A cover to go over the mains end of a PSU terminal strip to make it safe. The stl and assembly must be given a name and parameterless wrappers for the stl and assembly added to the project.

printed/psu_shroud.scad Implementation.

tests/PSU_shroud.scad Code for this example.

Functions

Function	Description
psu_shroud_cable_pitch(cable_d)	Pitch between cable entries
psu_shroud_centre_y(type)	Shroud centre relative to PSU centre
psu_shroud_depth(type)	Outside depth of the shroud
psu_shroud_extent(type)	How far it extends beyond the PSU to clear the connections
psu_shroud_height(type)	Outside height
psu_shroud_screw(type)	Screw used to fasten
psu_shroud_width(type)	Outside width of the shroud

Modules

Module	Description
psu_shroud(type, cable_d, name, cables = 1)	Generate the STL file for a specified ssr and cable
psu_shroud_assembly(type, cable_d, name, cables = 1)	The printed parts with inserts fitted
psu_shroud_cable_positions(type, cable_d, cables = 1)	Place children at the cable tie positions
psu_shroud_fastened_assembly(type, cable_d, thickness, name, cables = 1)	Assembly with screws in place
psu_shroud_hole_positions(type)	Place children at the screw hole positions
psu_shroud_holes(type, cable_d, cables = 1)	Drill the screw and ziptie holes

Vitamins

Qty	Module call	BOM entry
6	insert(F1BM3)	Heatfit insert M3
6	screw(M3_cap_screw, 10)	Screw M3 cap x 10mm
6	washer(M3_washer)	Washer M3 x 7mm x 0.5mm
6	star_washer(M3_washer)	Washer star M3 x 0.5mm
3	ziptie(small_ziptie, 3)	Ziptie 2.5mm x 100mm min length

Printed

Qty	Filename
1	psu_shroud_PD_150_12.stl
1	psu_shroud_S_250_48.stl
1	psu_shroud_S_300_12.stl

Assemblies

Qty	Name
1	PSU_shroud_PD_150_12_assembly
1	PSU_shroud_S_250_48_assembly
1	PSU_shroud_S_300_12_assembly

Top

---

Ribbon_clamp

Clamp for ribbon cable and polypropylene strip.

printed/ribbon_clamp.scad Implementation.

tests/ribbon_clamp.scad Code for this example.

Functions

Function	Description
ribbon_clamp_height(screw = screw)	Height
ribbon_clamp_length(ways, screw = screw)	Length given ways
ribbon_clamp_width(screw = screw)	Width

Modules

Module	Description
ribbon_clamp(ways, screw = screw)	Generate STL for given number of ways
ribbon_clamp_assembly(ways, screw = screw)	Printed part with inserts in place
ribbon_clamp_fastened_assembly(ways, thickness, screw = screw)	Clamp with fasteners in place
ribbon_clamp_hole_positions(ways, screw = screw, side = undef)	Place children at hole positions
ribbon_clamp_holes(ways, h = 20, screw = screw)	Drill screw holes

Vitamins

Qty	Module call	BOM entry
2	insert(F1BM2)	Heatfit insert M2
2	insert(F1BM3)	Heatfit insert M3
1		Ribbon cable 20 way 100mm
1		Ribbon cable 8 way 100mm
2	screw(M2_dome_screw, 8)	Screw M2 dome x 8mm
2	screw(M3_cap_screw, 10)	Screw M3 cap x 10mm
1		Tape self amalgamating silicone 11 x 25mm
1		Tape self amalgamating silicone 26 x 25mm
2	washer(M2_washer)	Washer M2 x 5mm x 0.3mm
2	washer(M3_washer)	Washer M3 x 7mm x 0.5mm
2	star_washer(M2_washer)	Washer star M2 x 0.3mm
2	star_washer(M3_washer)	Washer star M3 x 0.5mm

Printed

Qty	Filename
1	ribbon_clamp_20.stl
1	ribbon_clamp_8_2.stl

Assemblies

Qty	Name
1	ribbon_clamp_20_assembly
1	ribbon_clamp_8_2_assembly

Top

---

Screw_knob

Knob with embedded hex head screw.

printed/screw_knob.scad Implementation.

tests/screw_knob.scad Code for this example.

Modules

Module	Description
screw_knob(screw)	Generate the STL for a knob to fit the specified hex screw
screw_knob_assembly(screw, length)	Assembly with the screw in place

Vitamins

Qty	Module call	BOM entry
1	screw(M3_hex_screw, 16)	Screw M3 hex x 16mm
1	screw(M4_hex_screw, 16)	Screw M4 hex x 16mm

Printed

Qty	Filename
1	screw_knob_M30.stl
1	screw_knob_M40.stl

Assemblies

Qty	Name
1	screw_knob_M30_16_assembly
1	screw_knob_M40_16_assembly

Top

---

Socket_box

UK 13A socket and printed backbox with earth terminal for the panel it is mounted on.

printed/socket_box.scad Implementation.

tests/socket_box.scad Code for this example.

Functions

Function	Description
socket_box_depth()	Outside depth of the backbox

Modules

Module	Description
socket_box(type)	Generate STL of the backbox for the specified socket
socket_box_assembly(type)	The box with inserts fitted
socket_box_fastened_assembly(type, thickness)	The socket and backbox on each side of the specified panel thickness

Vitamins

Qty	Module call	BOM entry
4	insert(F1BM3)	Heatfit insert M3
1	mains_socket(Contactum)	Mains socket 13A
1	mains_socket(MKLOGIC)	Mains socket 13A, switched
2	nut(M3_nut, nyloc = true)	Nut M3 x 2.4mm nyloc
2	ring_terminal(M3_ringterm)	Ring terminal 3mm
4	screw(M3_cs_cap_screw, 20)	Screw M3 cs cap x 20mm
2	screw(M3_dome_screw, 10)	Screw M3 dome x 10mm
4	star_washer(M3_washer)	Washer star M3 x 0.5mm

Printed

Qty	Filename
1	socket_box_Contactum.stl
1	socket_box_MKLOGIC.stl

Assemblies

Qty	Name
1	socket_box_Contactum_assembly
1	socket_box_MKLOGIC_assembly

Top

---

SSR_shroud

A cover to go over the mains end of an SSR to make it safe to be touched. The STL and assembly must be given a name and parameterless wrappers for the stl and assembly added to the project.

printed/ssr_shroud.scad Implementation.

tests/SSR_shroud.scad Code for this example.

Functions

Function	Description
ssr_shroud_cable_x(type, cable_d)	Position of cable entry holes
ssr_shroud_extent(type, cable_d)	How far it extends beyond the SSR
ssr_shroud_height(type)	Outside height
ssr_shroud_screw(type)	Screw used to fasten
ssr_shroud_width(type)	Outside width of shroud

Modules

Module	Description
ssr_shroud(type, cable_d, name)	Generate the STL file for a specified ssr and cable
ssr_shroud_assembly(type, cable_d, name)	The printed parts with inserts fitted
ssr_shroud_fastened_assembly(type, cable_d, thickness, name)	Assembly with screws in place
ssr_shroud_hole_positions(type)	Place children at the screw hole positions
ssr_shroud_holes(type, cable_d)	Drill the screw and ziptie holes

Vitamins

Qty	Module call	BOM entry
4	insert(F1BM3)	Heatfit insert M3
4	screw(M3_cap_screw, 10)	Screw M3 cap x 10mm
4	washer(M3_washer)	Washer M3 x 7mm x 0.5mm
4	star_washer(M3_washer)	Washer star M3 x 0.5mm
4	ziptie(small_ziptie, 3)	Ziptie 2.5mm x 100mm min length

Printed

Qty	Filename
1	ssr_shroud_SSR10DA.stl
1	ssr_shroud_SSR25DA.stl

Assemblies

Qty	Name
1	SSR_shroud_SSR10DA_assembly
1	SSR_shroud_SSR25DA_assembly

Top

---

Strap_handle

Retracting strap handle. Print the strap with flexible filament. Shown with default dimensions but can be fully customised by passing a list of properties.

printed/strap_handle.scad Implementation.

tests/strap_handle.scad Code for this example.

Properties

Function	Description
strap_extension(type = strap)	How much length of the strap that can pull out
strap_panel(type = strap)	Panel thickness
strap_screw(type = strap)	Screw type
strap_thickness(type = strap)	Thickness of strap
strap_width(type = strap)	Width of strap

Functions

Function	Description
strap(width = 18, thickness = 2, screw = M3_pan_screw, panel_thickness = 3, extension = 25)	Construct a property list for a strap
strap_end_width(type = strap)	Width of the ends
strap_height(type)	Height of the ends
strap_insert(type)	The insert type

Modules

Module	Description
strap(length, type = strap)	Generate the STL for the rubber strap
strap_assembly(length, type = strap)	Assembly with screws in place
strap_end(type = strap)	Generate the STL for end piece
strap_holes(length, type = strap, h = 100)	The panel cut outs
strap_screw_positions(length, type = strap)	Place children at the screw positions

Vitamins

Qty	Module call	BOM entry
2	insert(F1BM3)	Heatfit insert M3
2	screw(M3_pan_screw, 8)	Screw M3 pan x 8mm
2	washer(M3_penny_washer)	Washer penny M3 x 12mm x 0.8mm
2	star_washer(M3_washer)	Washer star M3 x 0.5mm

Printed

Qty	Filename
1	strap.stl
2	strap_end.stl

Assemblies

Qty	Name
2	strap_end_assembly

Top

---

Annotation

Annotation used in this documentation

utils/annotation.scad Implementation.

tests/annotation.scad Code for this example.

Modules

Module	Description
arrow(length = 20)	Draw an arrow that faces downwards
label(str, scale = 0.25, valign = "baseline", halign = "left")	Draw text that always faces the camera

Top

---

Bezier

Bezier curves and function to get and adjust the length or minimum z point.

utils/bezier.scad Implementation.

tests/bezier.scad Code for this example.

Functions

Function	Description
adjust_bezier_length(v, l, eps = 0.001, r1 = 1.0, r2 = 1.5, l1, l2)	Adjust Bezier control points v to get the required curve length l
adjust_bezier_z(v, z, eps = 0.001, r1 = 1, r2 = 1.5, z1, z2)	Adjust Bezier control points v to get the required minimum z
bezier(t, v)	Returns a point at distance t [0 - 1] along the curve with control points v
bezier_length(v, delta = 0.01, t = 0, length = 0)	Calculate the length of a Bezier curve from control points v
bezier_min_z(v, steps = 100, z = inf, i = 0)	Calculate the minimum z coordinate of a Bezier curve from control points v
bezier_path(v, steps = 100)	Returns a Bezier path from control points v with steps segments

Top

---

Catenary

Catenary curve to model hanging wires, etc.

Although the equation of the curve is simply y = a cosh(x / a) there is no explicit formula to calculate the constant a or the range of x given the length of the cable and the end point coordinates. See https://en.wikipedia.org/wiki/Catenary#Determining_parameters. The Newton-Raphson method is used to find a numerically, see https://en.wikipedia.org/wiki/Newton%27s_method.

The coordinates of the lowest point on the curve can be retrieved by calling catenary_points() with steps equal to zero.

utils/catenary.scad Implementation.

tests/catenary.scad Code for this example.

Functions

Function	Description
catenary(t, a)	Parametric catenary function linear along the length of the curve.
catenary_ds_by_da(d, a)	First derivative of the length with respect to a.
catenary_find_a(d, l, a = 1, best_e = inf, best_a = 1)	Find the catenary constant a, given half the horizontal span and the length.
catenary_points(l, x, y, steps = 100)	Returns a list of 2D points on the curve that goes from the origin to (x,y) and has length l.
catenary_s(d, a)	Length of a symmetric catenary with width 2d.

Top

---

Dogbones

When square holes are cut with a CNC bit they get rounded corners. If it is important that a square cornered part fits in the hole then circles are placed in the corners making a bone shape.

utils/dogbones.scad Implementation.

tests/dogbones.scad Code for this example.

Modules

Module	Description
dogbone_rectangle(size, r = cnc_bit_r, center = true, xy_center = true)	Rectangle with cylinders at the corners
dogbone_square(size, r = cnc_bit_r, center = true)	Square with circles at the corners

Top

---

Fillet

Rounded fillet for adding to corners.

utils/fillet.scad Implementation.

tests/fillet.scad Code for this example.

Modules

Module	Description
fillet(r, h, center = false)	Fillet with specified radius and height

Top

---

Gears

Utilities for making involute gears.

Formulas from https://khkgears.net/new/gear_knowledge/gear_technical_reference/involute_gear_profile.html https://khkgears.net/new/gear_knowledge/gear_technical_reference/calculation_gear_dimensions.html and https://www.tec-science.com/mechanical-power-transmission/involute-gear/calculation-of-involute-gears/

involute_gear_profile() returns a polygon that can have the bore and spokes, etc, subtracted from it before linear extruding it to 3D. Helical gears can be made using twist and bevel gears using scale parameters of linear_extrude().

Gears with less than 19 teeth (when pressure angle is 20) are profile shifted to avoid undercutting the tooth root. 7 teeth is considered the practical minimum.

The clearance between tip and root defaults to module / 6, but can be overridden by setting the clearance parameter.

The origin of the rack is the left end of the pitch line and its width is below the pitch line. I.e. it does not include the addendum.

involute_worm_profile() returns a tooth profile that can be passed to thread() to make worms.

utils/gears.scad Implementation.

tests/gears.scad Code for this example.

Functions

Function	Description
centre_distance(m, z1, z2, pa = 20)	Calculate distance between centres taking profile shift into account
involute(r, u)	Involute of circle radius r at angle u in radians
involute_gear_od(m, z, pa = 20)	involute gear outside diameter given modulus, tooth count and pressure angle
involute_rack_tooth_profile(m, pa = 20, clearance = undef)	Calculate rack tooth profile given module and pressure angle
involute_worm_profile(m, pa = 20, clearance = undef)	Calculate worm profile suitable for passing to thread()
profile_shift(z, pa)	Calculate profile shift for small gears

Modules

Module	Description
involute_gear_profile(m, z, pa = 20, clearance = undef, steps = 20)	Calculate gear profile given module, number of teeth and pressure angle
involute_rack_profile(m, z, w, pa = 20, clearance = undef)	Calculate rack profile given module, number of teeth and pressure angle

Top

---

Hanging_hole

Method to print holes in mid air. See https://hydraraptor.blogspot.com/2014/03/buried-nuts-and-hanging-holes.html

utils/hanging_hole.scad Implementation.

tests/hanging_hole.scad Code for this example.

Modules

Module	Description
hanging_hole(z, ir, h = 100, h2 = 100)	Hole radius ir hanging at the specified z value above a void who's shape is given by a 2D child

Top

---

Horiholes

Utilities for depicting the staircase slicing of horizontal holes made with teardrop_plus(), see https://hydraraptor.blogspot.com/2020/07/horiholes-2.html

horicylinder() makes cylinders that fit inside a round hole. Layers that are less than 2 filaments wide and layers that need more than a 45 degree overhang are omitted.

utils/horiholes.scad Implementation.

tests/horiholes.scad Code for this example.

Functions

Function	Description
teardrop_minus_x(r, y, h)	Calculate the ordinate of a compensated teardrop given y and layer height.
teardrop_plus_x(r, y, h)	Calculate the ordinate of a compensated teardrop given y and layer height.

Modules

Module	Description
horicylinder(r, z, h = 0, center = true)	For making horizontal cylinders that don't need support material and are correct dimensions
horihole(r, z, h = 0, center = true)	For making horizontal holes that don't need support material and are correct dimensions

Top

---

Layout

Layout objects in a line with equal gaps given a vector of their widths.

utils/layout.scad Implementation.

tests/layout.scad Code for this example.

Functions

Function	Description
layout_offset(widths, i, gap = 2)	Calculate the offset for the ith item

Modules

Module	Description
layout(widths, gap = 2, no_offset = false)	Layout children passing $i

Top

---

Maths

Maths utilities for manipulating vectors and matrices.

utils/maths.scad Implementation.

tests/maths.scad Code for this example.

Functions

Function	Description
angle_between(v1, v2)	Return the angle between two vectors
argcosh(x)	inverse hyperbolic cosine
argcoth(x)	inverse hyperbolic cotangent
argsinh(x)	inverse hyperbolic sine
argtanh(x)	inverse hyperbolic tangent
augment(m)	Augment a matrix by adding an identity matrix to the right
circle_intersect(c1, r1, c2, r2)	Calculate one point where two circles in the X-Z plane intersect, clockwise around c1
cosh(x)	hyperbolic cosine
coth(x)	hyperbolic cotangent
degrees(radians)	Convert degrees to radians
euler(R)	Convert a rotation matrix to a Euler rotation vector.
identity(n, x = 1)	Construct an arbitrary size identity matrix
invert(m)	Invert a matrix
nearly_zero(x)	True if x is close to zero
radians(degrees)	Convert radians to degrees
reverse(v)	Reverse a vector
rot2_z(a)	Generate a 2x2 matrix to rotate around z
rot3_z(a)	Generate a 3x3 matrix to rotate around z
rotate(a, v)	Generate a 4x4 rotation matrix, a can be a vector of three angles or a single angle around z, or around axis v
rowswap(m, i, j)	Swap two rows of a matrix
scale(v)	Generate a 4x4 matrix that scales by v, which can be a vector of xyz factors or a scalar to scale all axes equally
sinh(x)	hyperbolic sine
solve(m, i = 0, j = 0)	Solve each row ensuring diagonal is not zero
solve_row(m, i)	Make diagonal one by dividing the row by it and subtract from other rows to make column zero
sqr(x)	Square x
tanh(x)	hyperbolic tangent
transform(v, m)	Apply 4x4 transform to a 3 vector by extending it and cropping it again
transform_points(path, m)	Apply transform to a path
translate(v)	Generate a 4x4 translation matrix, v can be [x, y], [x, y, z] or z
transpose(m)	Transpose an arbitrary size matrix
unit(v)	Convert v to a unit vector
vec3(v)	Return a 3 vector with the first three elements of v
vec4(v)	Return a 4 vector with the first three elements of v

Modules

Module	Description
position_children(list, t)	Position children if they are on the Z = 0 plane when transformed by t

Top

---

Offset

3D offset using minkowski with a sphere, so very slow if $fn is not kept small. The offset can be positive or negative.

Can be used to round corners. Positive offsets will round convex corners, negative offsets round concave corners. To round both use round_3D().

If chamfer_base is true then the bottom edge is made suitable for 3D printing by chamfering when the angle gets shallower than 45 degrees.

utils/offset.scad Implementation.

tests/offset.scad Code for this example.

Modules

Module	Description
offset_3D(r, chamfer_base = false)	Offset 3D shape by specified radius r, positive or negative.

Top

---

Quadrant

Square with one rounded corner.

utils/quadrant.scad Implementation.

tests/quadrant.scad Code for this example.

Modules

Module	Description
quadrant(w, r, center = false)	Draw a square with one rounded corner, can be centered on the arc centre, when center is true.

Top

---

Round

Round 2D shapes using offset(), which is fast and 3D shapes with offset_3D(), which is very slow.

A single radius can be specified or separate internal and external radii. If chamfer_base is true for round_3D() then the bottom edge is made suitable for 3D printing by chamfering once the the angle gets shallower than 45 degrees.

utils/round.scad Implementation.

tests/round.scad Code for this example.

Modules

Module	Description
round(r, ir = undef, or = undef)	Round a 2D child, single radius or separate inside and outside radii
round_3D(r, ir = undef, or = undef, chamfer_base = false)	Round a 3D child single radius or separate inside and outside radii

Top

---

Rounded_cylinder

Cylinder with a rounded end.

utils/rounded_cylinder.scad Implementation.

tests/rounded_cylinder.scad Code for this example.

Modules

Module	Description
rounded_corner(r, h, r2, ir = 0)	2D version
rounded_cylinder(r, h, r2, ir = 0, angle = 360)	Rounded cylinder given radius r, height h, optional internal radius ir and optional angle

Top

---

Rounded_polygon

Draw a polygon with rounded corners. Each element of the vector is the XY coordinate and a radius. Radius can be negative for a concave corner.

Because the tangents need to be calculated to find the length these can be calculated separately and re-used when drawing to save calculating them twice.

utils/rounded_polygon.scad Implementation.

tests/rounded_polygon.scad Code for this example.

Functions

Function	Description
rounded_polygon_length(points, tangents)	Calculate the length given the point list and the list of tangents computed by rounded_polygon_tangents
rounded_polygon_tangents(points)	Compute the straight sections needed to draw and to compute the lengths

Modules

Module	Description
rounded_polygon(points, _tangents = undef)	Draw the rounded polygon from the point list, can pass the tangent list to save it being calculated

Top

---

Sector

A sector of a circle between two angles.

utils/sector.scad Implementation.

tests/sector.scad Code for this example.

Modules

Module	Description
sector(r, start_angle, end_angle)	Create specified sector given radius r, start_angle and end_angle

Top

---

Sweep

Utility to generate a polhedron by sweeping a 2D profile along a 3D path and utilities for generating paths.

The initial orientation is the Y axis of the profile points towards the initial center of curvature, Frenet-Serret style. Subsequent rotations use the minimum rotation method.

The path can be open or closed. If closed sweep ensures that the start and end have the same rotation to line up. An additional twist around the path can be specified. If the path is closed this should be a multiple of 360.

utils/sweep.scad Implementation.

tests/sweep.scad Code for this example.

Functions

Function	Description
after(path1, path2)	Translate path2 so its start meets the end of path1 and then concatenate
arc_points(r, a = [90, 0, 180], al = 90)	Generate the points of a circular arc
before(path1, path2)	Translate path1 so its end meets the start of path2 and then concatenate
cap(facets, segment = 0, end)	Create the mesh for an end cap
circle_points(r = 1, z = 0, dir = -1)	Generate the points of a circle, setting z makes a single turn spiral
helical_twist_per_segment(r, pitch, sides)	Calculate the twist around Z that rotate_from_to() introduces
path_length(path, i = 0, length = 0)	Calculated the length along a path
rectangle_points(w, h)	Generate the points of a rectangle
skin_faces(points, npoints, facets, loop, offset = 0)	Create the mesh for the swept volume without end caps
sweep(path, profile, loop = false, twist = 0)	Generate the point list and face list of the swept volume

Modules

Module	Description
sweep(path, profile, loop = false, twist = 0, convexity = 1)	Draw a polyhedron that is the swept volume

Top

---

Thread

Utilities for making threads with sweep. They can be used to model screws, nuts, studding, leadscrews, etc, and also to make printed threads.

The ends can be tapered, flat or chamfered by setting the top and bot parameters to -1 for tapered, 0 for a flat cut and positive to specify a chamfer angle.

Threads are by default solid, so the male version is wrapped around a cylinder and the female inside a tube. This can be suppressed to just get the helix, for example to make a printed pot with a screw top lid.

A left hand thread can be made by using mirror([0,1]).

Threads with a typical 60 degree angle appear too bright with OpenSCAD's primitive lighting model as they face towards the lights more than the top and sides of a cylinder. To get around this a colour can be passed to thread that is used to colour the cylinder and then toned down to colour the helix.

Making the ends requires a CGAL intersection, which make threads relatively slow. For this reason they are generally disabled when using the GUI but can be enabled by setting $show_threads to true. When the tests are run, by default, threads are enabled only for things that feature them like screws. This behaviour can be changed by setting a NOPSCADLIB_SHOW_THREADS environment variable to false to disable all threads and true to enable all threads. The same variable also affects the generation of assembly diagrams.

Threads obey the $fn, $fa, $fs variables.

utils/thread.scad Implementation.

tests/thread.scad Code for this example.

Functions

Function	Description
metric_coarse_pitch(d)	Convert metric diameter to pitch
thread_profile(h, crest, angle, overlap = 0.1)	Create thread profile path

Modules

Module	Description
female_metric_thread(d, pitch, length, center = true, top = -1, bot = -1, colour = undef)	Create female thread with metric profile
male_metric_thread(d, pitch, length, center = true, top = -1, bot = -1, solid = true, colour = undef)	Create male thread with metric profile
thread(dia, pitch, length, profile, center = true, top = -1, bot = -1, starts = 1, solid = true, female = false, colour = undef)	Create male or female thread, ends can be tapered, chamfered or square

Top

---

Tube

Simple tube or ring

utils/tube.scad Implementation.

tests/tube.scad Code for this example.

Modules

Module	Description
ring(or, ir)	Create a ring with specified external and internal radii
tube(or, ir, h, center = true)	Create a tube with specified external and internal radii and height h
woven_tube(or, ir, h, center= true, colour = grey(30)	Create a woven tube with specified external and internal radii, height h, colours, warp and weft

Top

---

BOM

Bill Of Materials generation via echo and the bom.py script. Also handles exploded assembly views and posing. Assembly instructions can precede the module definition that makes the assembly.

Assembly views shown in the instructions can be large or small and this is deduced by looking at the size of the printed parts involved and if any routed parts are used. This heuristic isn't always correct, so the default can be overridden by setting the big parameter of assembly to true or false.

The example below shows how to define a vitamin and incorporate it into an assembly with sub-assemblies and make an exploded view. The resulting flat BOM is shown but heirachical BOMs are also generated for real projects.

utils/core/bom.scad Implementation.

tests/BOM.scad Code for this example.

Functions

Function	Description
arg(value, default, name = "")	Create string for arg if not default, helper for vitamin()
bom_mode(n = 1)	Current BOM mode, 0 = none, 1 = printed and routed parts and assemblies, 2 includes vitamins as well
exploded()	Returns the value of $exploded if it is defined, else 0
show_supports()	True if printed support material should be shown
value_string(value)	Convert value to a string or quote it if it is already a string

Modules

Module	Description
assembly(name, big = undef)	Name an assembly that will appear on the BOM, there needs to a module named <name>_assembly to make it. big can force big or small assembly diagrams.
dxf(name)	Name a dxf that will appear on the BOM, there needs to a module named <name>_dxf to make it
explode(d, explode_children = false, offset = [0,0,0])	Explode children by specified Z distance or vector d, option to explode grand children
hidden()	Make item invisible, except on the BOM
no_explode()	Prevent children being exploded
no_pose()	Force children not to be posed even if parent is
not_on_bom(on = false)	Specify the following child parts are not on the BOM, for example when they are on a PCB that comes assembled
pose(a = [55, 0, 25], t = [0, 0, 0], exploded = undef)	Pose an STL or assembly for rendering to png by specifying rotation a and translation t, exploded = true for just the exploded view or false for unexploded only.
pose_hflip(exploded = undef)	Pose an STL or assembly for rendering to png by flipping around the Y axis, exploded = true for just the exploded view or false for unexploded only.
pose_vflip(exploded = undef)	Pose an STL or assembly for rendering to png by flipping around the X axis, exploded = true for just the exploded view or false for unexploded only.
stl(name)	Name an stl that will appear on the BOM, there needs to a module named <name>_stl to make it
stl_colour(colour = pp1_colour, alpha = 1)	Colour an stl where it is placed in an assembly. alpha can be used to make it appear transparent.
vitamin(description)	Describe a vitamin for the BOM entry and precede it with a module call that creates it, eg. "wigit(42): Type 42 widget"

Vitamins

Qty	Module call	BOM entry
1	insert(F1BM3)	Heatfit insert M3
1	widget(3)	Rivit like thing for 3mm sheets
1	screw(M3_cap_screw, 8)	Screw M3 cap x 8mm
1	sheet(PMMA3, 20, 20, 1)	Sheet acrylic 20mm x 20mm x 3mm
1	washer(M3_washer)	Washer M3 x 7mm x 0.5mm
1	star_washer(M3_washer)	Washer star M3 x 0.5mm

Printed

Qty	Filename
1	widget.stl

Routed

Qty	Filename
1	widget.dxf

Assemblies

Qty	Name
1	widget_top_assembly
1	widgit_base_assembly
1	wigdit_assembly

Top

---

Clip

Construct arbirarily large box to partition 3D space and clip objects, useful for creating cross sections to see the inside when debugging.

Original version by Doug Moen on the OpenSCAD forum

utils/core/clip.scad Implementation.

tests/clip.scad Code for this example.

Modules

Module	Description
box(xmin, ymin, zmin, xmax, ymax, zmax)	Construct a box given its bounds
clip(xmin = -inf, ymin = -inf, zmin = -inf, xmax = inf, ymax = inf, zmax = inf)	Clip child to specified boundaries

Top

---

Global

Global constants, functions and modules. This file is used directly or indirectly in every scad file.

utils/core/global.scad Implementation.

tests/global.scad Code for this example.

Functions

Function	Description
Len(x)	Returns the length of a list or 0 if x is not a list
cm(x)	cm to mm conversion
echoit(x)	Echo expression and return it, useful for debugging
foot(x)	Foot to mm conversion
in(list, x)	Returns true if x is an element in the list
inch(x)	Inch to mm conversion (For fractional inches, 'inch(1 + 7/8)' will work as expected.)
limit(x, min, max)	Force x in range min <= x <= max
m(x)	m to mm conversion
mm(x)	Explicit mm specified
no_point(str)	Replace decimal point in string with 'p'
r2sides(r)	Replicates the OpenSCAD logic to calculate the number of sides from the radius
r2sides4n(r)	Round up the number of sides to a multiple of 4 to ensure points land on all axes
slice(list, start = 0, end = undef)	Slice a list or string with Python type semantics
sqr(x)	Returns the square of x
yard(x)	Yard to mm conversion

Modules

Module	Description
circle4n(r, d = undef)	Circle with multiple of 4 vertices
ellipse(xr, yr)	Draw an ellipse
extrude_if(h, center = true)	Extrudes 2D object to 3D when h is nonzero, otherwise leaves it 2D
hflip(flip=true)	Invert children by doing a 180° flip around the Y axis
right_triangle(width, height, h, center = true)	A right angled triangle with the 90° corner at the origin. 3D when h is nonzero, otherwise 2D
semi_circle(r, d = undef)	A semi circle in the positive Y domain
translate_z(z)	Shortcut for Z only translations
vflip(flip=true)	Invert children by doing a 180° flip around the X axis

Top

---

Polyholes

A method of making 3D printed holes come out the right size regardless of the printer, providing it gets the linear dimensions right. See https://hydraraptor.blogspot.com/2011/02/polyholes.html

The module provides poly_circle(), poly_cylinder() and poly_ring() that is useful for making printed washers and pillars.

utils/core/polyholes.scad Implementation.

tests/polyholes.scad Code for this example.

Functions

Function	Description
corrected_diameter(d, n = 0)	Adjusted diameter to make flats lie on the circle
corrected_radius(r, n = 0)	Adjusted radius to make flats lie on the circle
sides(r)	Optimium number of sides for specified radius

Modules

Module	Description
drill(r, h = 100, center = true)	Make a cylinder for drilling holes suitable for CNC routing, set h = 0 for circle
poly_circle(r, sides = 0)	Make a circle adjusted to print the correct size
poly_cylinder(r, h, center = false, sides = 0, chamfer = false)	Make a cylinder adjusted to print the correct size
poly_drill(r, h = 100, center = true)	Make a cylinder for drilling holes suitable for CNC routing if cnc_bit_r is non zero, otherwise a poly_cylinder.
poly_ring(or, ir, sides = 0)	Make a 2D ring adjusted to have the correct internal radius
poly_tube(or, ir, h, center = false)	Make a tube adjusted to have the correct internal radius
slot(r, l, h = 100)	Make a horizontal slot suitable for CNC routing, set h = 0 for 2D version

Vitamins

Qty	Module call	BOM entry
1	sheet(Steel06, 20, 20, 1)	Sheet mild steel 20mm x 20mm x 0.6mm
1	rod(1.5, 11)	Smooth rod 1.5mm x 11mm
1	rod(10.5, 47)	Smooth rod 10.5mm x 47mm
1	rod(10, 45)	Smooth rod 10mm x 45mm
1	rod(1, 9)	Smooth rod 1mm x 9mm
1	rod(2.5, 15)	Smooth rod 2.5mm x 15mm
1	rod(2, 13)	Smooth rod 2mm x 13mm
1	rod(3.5, 19)	Smooth rod 3.5mm x 19mm
1	rod(3, 17)	Smooth rod 3mm x 17mm
4	rod(3, 3)	Smooth rod 3mm x 3mm
1	rod(4.5, 23)	Smooth rod 4.5mm x 23mm
1	rod(4, 21)	Smooth rod 4mm x 21mm
1	rod(5.5, 27)	Smooth rod 5.5mm x 27mm
1	rod(5, 25)	Smooth rod 5mm x 25mm
1	rod(6.5, 31)	Smooth rod 6.5mm x 31mm
1	rod(6, 29)	Smooth rod 6mm x 29mm
1	rod(7.5, 35)	Smooth rod 7.5mm x 35mm
1	rod(7, 33)	Smooth rod 7mm x 33mm
1	rod(8.5, 39)	Smooth rod 8.5mm x 39mm
1	rod(8, 37)	Smooth rod 8mm x 37mm
1	rod(9.5, 43)	Smooth rod 9.5mm x 43mm
1	rod(9, 41)	Smooth rod 9mm x 41mm

Top

---

Rounded_rectangle

Rectangle with rounded corners.

utils/core/rounded_rectangle.scad Implementation.

tests/rounded_rectangle.scad Code for this example.

Modules

Module	Description
rounded_rectangle(size, r, center = true, xy_center = true)	Like cube() but corners rounded in XY plane and separate centre options for xy and z.
rounded_square(size, r, center = true)	Like square() but with with rounded corners

Top

---

Sphere

Redefines sphere() to always have a vertex on all six half axes I.e. vertices at the poles and the equator and $fn a multiple of four. This ensures hull and minkowski results have the correct dimensions when spheres are placed at the corners.

utils/core/sphere.scad Implementation.

tests/sphere.scad Code for this example.

Modules

Module	Description
sphere(r = 1, d = undef)	Override sphere so that has vertices on all three axes. Has the advantage of giving correct dimensions when hulled

Top

---

Teardrops

For making horizontal holes that don't need support material. Small holes can get away without it, but they print better with truncated teardrops.

Using teardrop_plus() or setting the plus option on other modules will elongate the teardrop vertically by the layer height, so when sliced the staircase tips do not intrude into the circle. See https://hydraraptor.blogspot.com/2020/07/horiholes-2.html

utils/core/teardrops.scad Implementation.

tests/teardrops.scad Code for this example.

Modules

Module	Description
semi_teardrop(h, r, d = undef, center = true, chamfer = 0, plus = false)	A semi teardrop in the positive Y domain
teardrop(h, r, center = true, truncate = true, chamfer = 0, plus = false)	For making horizontal holes that don't need support material, set truncate = false to make traditional RepRap teardrops that don't even need bridging
teardrop_chamfer(h, center, chamfer)	Helper module for adding chamfer to a teardrop
teardrop_plus(h, r, center = true, truncate = true, chamfer = 0)	Slightly elongated teardrop to allow for the 3D printing staircase effect
tearslot(h, r, w, center = true, chamfer = 0, plus = false)	A horizontal slot that doesn't need support material
vertical_tearslot(h, r, l, center = true, chamfer = 0, plus = false)	A vertical slot that doesn't need support material

Top

---