djsundog
/
NopSCADlib
mirror of https://github.com/DJSundog/NopSCADlib.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Merge branch 'martinbudden-bl30x10'

This commit is contained in:
Chris Palmer 2021-02-07 21:46:28 +00:00
parent a3ced6de45 d90c00d140
commit 613152f589
6 changed files with 39 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

BIN
libtest.png
View File

Binary file not shown.
Side by Side Swipe Overlay

Before

Width:  |  Height:  |  Size: 875 KiB

After

Width:  |  Height:  |  Size: 876 KiB

6
readme.md
View File

@ -288,6 +288,8 @@ Models of radial blowers.
| `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_wall_left(type)` | Left side wall thickness |
| `blower_wall_right(type)` | Right wall thickness (for square fans) |
| `blower_width(type)` | Width of enclosing rectangle |
### Functions
@ -311,10 +313,12 @@ Models of radial blowers.
| 1 | `blower(PE4020)` | Blower Pengda Technology 4020 |
| 1 | `blower(RB5015)` | Blower Runda RB5015 |
| 4 | `screw(M2_cap_screw, 8)` | Screw M2 cap x 8mm |
| 2 | `screw(M2_cap_screw, 10)` | Screw M2 cap x 10mm |
| 3 | `screw(M3_cap_screw, 20)` | Screw M3 cap x 20mm |
| 2 | `screw(M4_cap_screw, 25)` | Screw M4 cap x 25mm |
| 1 | `blower(BL30x10)` | Square radial fan 3010 |
| 1 | `blower(BL40x10)` | Square radial fan 4010 |
| 4 | `washer(M2_washer)` | Washer M2 x 5mm x 0.3mm |
| 6 | `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 |

2
tests/blowers.scad
View File

@ -22,7 +22,7 @@ use <../utils/layout.scad>
include <../vitamins/blowers.scad>
module blowers()
layout([for(b = blowers) blower_width(b)], 10, true) let(b = blowers[$i]){
layout([for(b = blowers) blower_width(b)], 5, true) let(b = blowers[$i]){
screw = blower_screw(b);
h = blower_lug(b);

BIN
tests/png/blowers.png
View File

Binary file not shown.
Side by Side Swipe Overlay

Before

Width:  |  Height:  |  Size: 49 KiB

After

Width:  |  Height:  |  Size: 51 KiB

45
vitamins/blower.scad
View File

@ -40,8 +40,10 @@ function blower_base(type) = type[13]; //! Thickness of the base
function blower_top(type) = type[14]; //! Thickness of the top
function blower_wall(type) = type[15]; //! Side wall thickness
function blower_lug(type) = type[16]; //! Height of the lugs
function blower_wall_left(type) = type[15]; //! Left side wall thickness
function blower_wall_right(type) = type[17]; //! Right wall thickness (for square fans)
function blower_casing_is_square(type) = len(blower_screw_holes(type)) > 3; //! True for square radial fans, false for spiral shape radial blowers
function blower_casing_is_square(type) = blower_depth(type) < 15; //! True for square radial fans, false for spiral shape radial blowers
function blower_exit_offset(type) = blower_casing_is_square(type) ? blower_length(type) / 2 : blower_exit(type) / 2; //! Offset of exit's centre from the edge
fan_colour = grey(20);
@ -74,41 +76,54 @@ module blower_fan(type, casing_is_square) {
module blower_square(type) { //! Draw a square blower
width = blower_width(type);
depth = blower_depth(type);
wall = blower_wall(type);
wall_left = blower_wall_left(type);
wall_right = blower_wall_right(type);
hole_count = len(blower_screw_holes(type));
hole_pitch = (blower_screw_holes(type)[1].x - blower_screw_holes(type)[0].x) / 2;
corner_radius = width / 2 - hole_pitch;
corner_inset = (width - blower_exit(type)) / 2;
corner_inset = (width - blower_exit(type) - wall_left - wall_right) / (hole_count == 2 ? 1 : 2);
module inset_corners()
translate([width / 2, width / 2])
for(i = hole_count == 2 ? [1, 3] : [0 : 3])
rotate(i * 90)
translate([-width / 2 - eps, -width/ 2 - eps])
quadrant(corner_inset, corner_inset - corner_radius);
module square_inset_corners(remove_center = false)
difference() {
//overall outside
square([width, width], center = false);
rounded_square([width, width], corner_radius, center = false);
if (remove_center) {
// cut out the inside, leaving the corners
translate([corner_inset + wall, -eps])
square([width - 2 * (wall + corner_inset), width - wall + eps], center = false);
translate([wall, corner_inset + wall])
square([width - 2 * wall, width - 2 * (wall + corner_inset)], center = false);
translate([hole_count == 2 ? wall_left : corner_inset + wall_left, -eps])
square([blower_exit(type), width / 2], center = false);
translate(blower_axis(type))
circle(d = blower_bore(type) + 1);
} else {
// cut out the bore for the fan
translate(blower_axis(type))
circle(d = blower_bore(type));
}
// corner inset
translate([width / 2, width / 2])
for(i = [0 : 3])
rotate(i * 90)
translate([-width / 2 - eps, -width/ 2 - eps])
quadrant(corner_inset, corner_inset - corner_radius);
inset_corners();
}
base_height = blower_base(type);
linear_extrude(base_height)
difference () {
rounded_square([width, width], corner_radius, center = false);
blower_hole_positions(type)
circle(d = blower_screw_hole(type));
}
// add the lugs which may be higher than the base
linear_extrude(blower_lug(type))
difference () {
intersection() {
rounded_square([width, width], corner_radius, center = false);
inset_corners();
}
blower_hole_positions(type)
circle(d = blower_screw_hole(type));
}

5
vitamins/blowers.scad
View File

@ -24,8 +24,9 @@
// h h s t t
RB5015 = ["RB5015", "Blower Runda RB5015", 51.3, 51, 15, 31.5, M4_cap_screw, 26, [27.3, 25.4], 4.5, [[4.3, 45.4], [47.3,7.4]], 20, 14, 1.5, 1.3, 1.2, 15];
PE4020 = ["PE4020", "Blower Pengda Technology 4020", 40, 40, 20, 27.5, M3_cap_screw, 22, [21.5, 20 ], 3.2, [[37,3],[3,37],[37,37]], 29.3, 17, 1.7, 1.2, 1.3, 13];
BL40x10 =["BL40x10","Square radial fan 4010", 40, 40,9.5, 27, M2_cap_screw, 16, [24, 20 ], 2.4, [[2,2],[38,2],[2,38],[38,38]], 30 , 9.5, 1.5, 1.5, 1.1, 1.5];
BL30x10 =["BL30x10","Square radial fan 3010", 30, 30,10.1,25, M2_cap_screw, 16, [16, 15 ], 2.4, [[3,27],[27,3]], 21.2, 9.5, 1.1, 1.2, 2.5, 2.8, 0.9];
BL40x10 =["BL40x10","Square radial fan 4010", 40, 40,9.5, 27, M2_cap_screw, 16, [24, 20 ], 2.4, [[2,2],[38,2],[2,38],[38,38]], 27.8, 9.5, 1.5, 1.5, 1.1, 1.5, 1.1];
blowers = [BL40x10, PE4020, RB5015];
blowers = [BL30x10, BL40x10, PE4020, RB5015];
use <blower.scad>