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Merge branch 'martinbudden-stepper_motor_jst_connector'

This commit is contained in:
Chris Palmer 2020-11-08 21:29:03 +00:00
parent 34b58e3b64 c9c2ffafba
commit 23cbadf6df
6 changed files with 32 additions and 20 deletions
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libtest.png
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readme.md
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@ -3422,7 +3422,7 @@ NEMA stepper motor model.
### Modules ### Modules
| Module | Description | | Module | Description |
|:--- |:--- | |:--- |:--- |
| ```NEMA(type, shaft_angle = 0)``` | Draw specified NEMA stepper motor | | ```NEMA(type, shaft_angle = 0, jst_connector = false)``` | Draw specified NEMA stepper motor |
| ```NEMA_outline(type)``` | 2D outline | | ```NEMA_outline(type)``` | 2D outline |
| ```NEMA_screw_positions(type, n = 4)``` | Positions children at the screw holes | | ```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 | | ```NEMA_screws(type, screw, n = 4, screw_length = 8, earth = undef)``` | Place screws and optional earth tag |

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tests/stepper_motors.scad
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@ -24,7 +24,7 @@ use <../utils/layout.scad>
module stepper_motors() module stepper_motors()
layout([for(s = stepper_motors) NEMA_width(s)], 5) { layout([for(s = stepper_motors) NEMA_width(s)], 5) {
rotate(180) rotate(180)
NEMA(stepper_motors[$i]); NEMA(stepper_motors[$i], 0, $i > 1 && $i < 5);
translate_z(4) translate_z(4)
NEMA_screws(stepper_motors[$i], M3_pan_screw, n = $i, earth = $i > 4 ? undef : $i - 1); NEMA_screws(stepper_motors[$i], M3_pan_screw, n = $i, earth = $i > 4 ? undef : $i - 1);

34
vitamins/stepper_motor.scad
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@ -23,6 +23,7 @@
include <../core.scad> include <../core.scad>
include <ring_terminals.scad> include <ring_terminals.scad>
include <../vitamins/pin_headers.scad>
use <../utils/tube.scad> use <../utils/tube.scad>
use <../utils/thread.scad> use <../utils/thread.scad>
use <washer.scad> use <washer.scad>
@ -39,7 +40,6 @@ function NEMA_shaft_length(type)= type[8]; //! Shaft length above the face, if a
function NEMA_hole_pitch(type) = type[9]; //! Screw hole pitch function NEMA_hole_pitch(type) = type[9]; //! Screw hole pitch
function NEMA_holes(type) = [-NEMA_hole_pitch(type) / 2, NEMA_hole_pitch(type) / 2]; //! Screw positions for for loop function NEMA_holes(type) = [-NEMA_hole_pitch(type) / 2, NEMA_hole_pitch(type) / 2]; //! Screw positions for for loop
function NEMA_big_hole(type) = NEMA_boss_radius(type) + 0.2; //! Clearance hole for the big boss function NEMA_big_hole(type) = NEMA_boss_radius(type) + 0.2; //! Clearance hole for the big boss
stepper_body_colour = "black"; stepper_body_colour = "black";
stepper_cap_colour = grey(50); stepper_cap_colour = grey(50);
stepper_machined_colour = grey(90); stepper_machined_colour = grey(90);
@ -52,7 +52,7 @@ module NEMA_outline(type) //! 2D outline
circle(NEMA_radius(type)); circle(NEMA_radius(type));
} }
module NEMA(type, shaft_angle = 0) { //! Draw specified NEMA stepper motor module NEMA(type, shaft_angle = 0, jst_connector = false) { //! Draw specified NEMA stepper motor
side = NEMA_width(type); side = NEMA_width(type);
length = NEMA_length(type); length = NEMA_length(type);
body_rad = NEMA_body_radius(type); body_rad = NEMA_body_radius(type);
@ -92,12 +92,23 @@ module NEMA(type, shaft_angle = 0) { //! Draw specified NEMA stepper motor
cap_shape(1); cap_shape(1);
} }
color(stepper_cap_colour) // aluminium end caps tabSize = [16, 4, 2.5];
color(stepper_cap_colour) { // aluminium end caps
for(end = [-1, 1]) for(end = [-1, 1])
translate_z(-length / 2 + end * (length - cap) / 2) translate_z(-length / 2 + end * (length - cap) / 2)
linear_extrude(cap, center = true) linear_extrude(cap, center = true)
cap_shape(end); cap_shape(end);
if(jst_connector)
translate([-tabSize.x / 2, side / 2, -length])
cube(tabSize);
}
if(jst_connector)
translate([0, side / 2 - 2, -length + tabSize.z + 5.75 / 2])
rotate([-90, 0, 0])
jst_xh_header(jst_xh_header, 6);
if(show_threads) if(show_threads)
for(x = NEMA_holes(type), y = NEMA_holes(type)) for(x = NEMA_holes(type), y = NEMA_holes(type))
translate([x, y, -cap / 2]) translate([x, y, -cap / 2])
@ -111,15 +122,16 @@ module NEMA(type, shaft_angle = 0) { //! Draw specified NEMA stepper motor
cylinder(r = shaft_rad, h = shaft + 5); // shaft cylinder(r = shaft_rad, h = shaft + 5); // shaft
else else
not_on_bom() not_on_bom()
leadscrew(shaft_rad * 2, shaft.x + 5, shaft.y, shaft.z, center = false) leadscrew(shaft_rad * 2, shaft.x + 5, shaft.y, shaft.z, center = false);
translate([0, side / 2, -length + cap / 2]) if(!jst_connector)
rotate([90, 0, 0]) translate([0, side / 2, -length + cap / 2])
for(i = [0 : 3]) rotate([90, 0, 0])
rotate(225 + i * 90) for(i = [0 : 3])
color(["red", "blue","green","black"][i]) rotate(225 + i * 90)
translate([1, 0, 0]) color(["red", "blue","green","black"][i])
cylinder(r = 1.5 / 2, h = 12, center = true); translate([1, 0, 0])
cylinder(r = 1.5 / 2, h = 12, center = true);
} }
module NEMA_screw_positions(type, n = 4) { //! Positions children at the screw holes module NEMA_screw_positions(type, n = 4) { //! Positions children at the screw holes

14
vitamins/stepper_motors.scad
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@ -23,13 +23,13 @@
// corner body boss boss shaft // corner body boss boss shaft
// side, length, radius, radius, radius, depth, shaft, length, holes // side, length, radius, radius, radius, depth, shaft, length, holes
NEMA17 = ["NEMA17", 42.3, 47, 53.6/2, 25, 11, 2, 5, 24, 31 ]; NEMA17 = ["NEMA17", 42.3, 47, 53.6/2, 25, 11, 2, 5, 24, 31];
NEMA17M = ["NEMA17M", 42.3, 40, 53.6/2, 25, 11, 2, 5, 20, 31 ]; NEMA17M = ["NEMA17M", 42.3, 40, 53.6/2, 25, 11, 2, 5, 20, 31];
NEMA17M8= ["NEMA17M8", 42.3, 40, 53.6/2, 25, 11, 2, 8, [280, 8, 4], 31 ]; NEMA17M8= ["NEMA17M8", 42.3, 40, 53.6/2, 25, 11, 2, 8, [280, 8, 4], 31];
NEMA17S = ["NEMA17S", 42.3, 34, 53.6/2, 25, 11, 2, 5, 24, 31 ]; NEMA17S = ["NEMA17S", 42.3, 34, 53.6/2, 25, 11, 2, 5, 24, 31];
NEMA16 = ["NEMA16", 39.5, 19.2, 50.6/2, 50.6/2, 11, 2, 5, 12, 31 ]; NEMA16 = ["NEMA16", 39.5, 19.2, 50.6/2, 50.6/2, 11, 2, 5, 12, 31];
NEMA14 = ["NEMA14", 35.2, 36, 46.4/2, 21, 11, 2, 5, 21, 26 ]; NEMA14 = ["NEMA14", 35.2, 36, 46.4/2, 21, 11, 2, 5, 21, 26];
NEMA23 = ["NEMA23", 56.4, 51.2, 75.7/2, 35, 38.1/2, 1.6, 6.35, 24, 47.1 ]; NEMA23 = ["NEMA23", 56.4, 51.2, 75.7/2, 35, 38.1/2, 1.6, 6.35, 24, 47.1];
stepper_motors = [NEMA14, NEMA16, NEMA17S, NEMA17M, NEMA17, NEMA23]; stepper_motors = [NEMA14, NEMA16, NEMA17S, NEMA17M, NEMA17, NEMA23];