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Merge branch 'main' of gitlab.com:noisy_cricket/cad

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Ricardo (XenGi) Band 2023-07-17 10:49:25 +02:00
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10 changed files with 111 additions and 41 deletions
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16
.editorconfig Normal file
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@ -0,0 +1,16 @@
# EditorConfig helps developers define and maintain consistent coding styles between different editors and IDEs
# editorconfig.org
root = true
[*.scad]
indent_style = space
indent_size = 2
charset = utf-8
trim_trailing_whitespace = true
insert_final_newline = true
[Makefile]
end_of_line = lf
indent_style = tab

11
Makefile
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@ -1,7 +1,12 @@
.PHONY: render
.PHONY: stl 3mf
render:
stl:
openscad --export-format binstl -o upper_case.stl upper_case.scad
openscad --export-format binstl -o lower_case.stl lower_case.scad
openscad --export-format 3mf -o lower_case.3mf lower_case.scad
openscad --export-format binstl -o plate.stl plate.scad
3mf:
openscad --export-format 3mf -o upper_case.3mf upper_case.scad
openscad --export-format 3mf -o lower_case.3mf lower_case.scad
openscad --export-format 3mf -o plate.3mf plate.scad

7
README.md
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@ -1,12 +1,15 @@
![upper case](https://gitlab.com/noisy_cricket/cad/-/raw/main/upper_case.png?inline=false)
![plate](https://gitlab.com/noisy_cricket/cad/-/raw/main/plate.png?inline=false)
![lower case](https://gitlab.com/noisy_cricket/cad/-/raw/main/lower_case.png?inline=false)
CAD files for noisy cricket
===========================
Create stl and 3mf files for lower case and plate files by running (needs openscad):
Create files for 3D printing or CNC by running this (needs openscad):
```shell
make render
make stl
make 3mf
```
---

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15
lower_case.scad
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@ -4,7 +4,7 @@ include <util.scad>
$fn = 64;
difference() {
color("SaddleBrown") difference() {
// case
hull() {
translate([-case_thickness, -case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius);
@ -43,10 +43,21 @@ difference() {
translate([-pololu_width/2+pololu_hole_spacing, pololu_depth/2-pololu_hole_spacing, -pcb_thickness/2-2]) cylinder(h=2, r=pololu_holes_radius);
translate([pololu_width/2-pololu_hole_spacing, pololu_depth/2-pololu_hole_spacing, -pcb_thickness/2-2]) cylinder(h=2, r=pololu_holes_radius);
}
// screw holes for upper case
translate([-case_thickness, -case_thickness, 0]) cylinder(h=2, d=4);
translate([pcb_width-2*pcb_radius+case_thickness, -case_thickness, 0]) cylinder(h=2, d=4);
translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=2, d=4);
translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=2, d=4);
translate([-case_thickness, -case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, d=2);
translate([pcb_width-2*pcb_radius+case_thickness, -case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, d=2);
translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, d=2);
translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, d=2);
}
// mounting standoffs
for(i = [0 : len(mounting_holes)-1]) {
color("SaddleBrown") for(i = [0 : len(mounting_holes)-1]) {
translate([mounting_holes[i][0] - pcb_radius, mounting_holes[i][1] - pcb_radius, case_bottom_thickness]) difference() {
cylinder(h=standoff_height, d=4);
cylinder(h=standoff_height, d=2);

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37
plate.scad
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@ -4,24 +4,22 @@ include <util.scad>
$fn = 64;
module plate() {
hull() {
cylinder(h=plate_thickness, r=pcb_radius);
translate([pcb_width-2*pcb_radius, 0, 0]) cylinder(h=plate_thickness, r=pcb_radius);
translate([0, pcb_depth-2*pcb_radius, 0]) cylinder(h=plate_thickness, r=pcb_radius);
translate([pcb_width-2*pcb_radius, pcb_depth-2*pcb_radius, 0]) cylinder(h=plate_thickness, r=pcb_radius);
// projection(cut=true)
color("Gold") difference() {
union() {
hull() {
cylinder(h=plate_thickness, r=pcb_radius);
translate([pcb_width-2*pcb_radius, 0, 0]) cylinder(h=plate_thickness, r=pcb_radius);
translate([0, pcb_depth-2*pcb_radius, 0]) cylinder(h=plate_thickness, r=pcb_radius);
translate([pcb_width-2*pcb_radius, pcb_depth-2*pcb_radius, 0]) cylinder(h=plate_thickness, r=pcb_radius);
}
translate([20, pcb_depth - pcb_radius, 0]) lug();
translate([pcb_width-2*pcb_radius - 20, pcb_depth - pcb_radius, 0]) lug();
translate([20, -pcb_radius, 0]) lug(north_facing=false);
translate([pcb_width-2*pcb_radius - 20, -pcb_radius, 0]) lug(north_facing=false);
}
translate([20, pcb_depth - pcb_radius, 0]) lug();
translate([pcb_width-2*pcb_radius - 20, pcb_depth - pcb_radius, 0]) lug();
translate([20, -pcb_radius, 0]) lug(north_facing=false);
translate([pcb_width-2*pcb_radius - 20, -pcb_radius, 0]) lug(north_facing=false);
}
// projection(cut=true)
difference() {
color("gold") plate();
translate([12.7-pcb_radius, 12.7-pcb_radius, 0]) {
mx_1x1_cutout();
translate([mx, 0, 0]) mx_1x1_cutout();
@ -29,7 +27,7 @@ difference() {
translate([3*mx, 0, 0]) mx_1x1_cutout();
translate([4.5*mx, 0, 0]) mx_2x1_cutout();
translate([4.5*mx, 0, 0]) mx_1x1_cutout();
translate([(mx*1.75)/2-mx/2, mx, 0]) mx_1x1_cutout();
translate([mx*1.75-mx, mx, 0]) {
translate([mx, 0, 0]) mx_1x1_cutout();
@ -38,7 +36,7 @@ difference() {
translate([4*mx, 0, 0]) mx_1x1_cutout();
translate([4*mx+21.4312, 9.525, 0]) mx_1x2_cutout();
};
translate([(mx*1.5)/2-mx/2, 2*mx, 0]) mx_1x1_cutout();
translate([(mx*1.5)-mx, 2*mx, 0]) {
translate([mx, 0, 0]) mx_1x1_cutout();
@ -46,7 +44,7 @@ difference() {
translate([3*mx, 0, 0]) mx_1x1_cutout();
translate([4*mx, 0, 0]) mx_1x1_cutout();
};
translate([0, 3*mx, 0]) {
mx_1x1_cutout();
translate([mx, 0, 0]) mx_1x1_cutout();
@ -60,3 +58,4 @@ difference() {
// potentiometer
translate([127-pcb_radius, 12.45-pcb_radius, plate_thickness/2]) cube([13, 13, plate_thickness], center=true);
};

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upper_case.scad Normal file
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// This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
include <util.scad>
$fn = 64;
color("SaddleBrown") difference() {
// case
hull() {
translate([-case_thickness, -case_thickness, 0]) cylinder(h=upper_case_height, r=pcb_radius);
translate([pcb_width-2*pcb_radius+case_thickness, -case_thickness, 0]) cylinder(h=upper_case_height, r=pcb_radius);
translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=upper_case_height, r=pcb_radius);
translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=upper_case_height, r=pcb_radius);
}
// pcb
hull() {
cylinder(h=upper_case_height+0.1, r=pcb_radius);
translate([pcb_width-2*pcb_radius, 0, 0]) cylinder(h=upper_case_height+0.1, r=pcb_radius);
translate([0, pcb_depth-2*pcb_radius, 0]) cylinder(h=upper_case_height+0.1, r=pcb_radius);
translate([pcb_width-2*pcb_radius, pcb_depth-2*pcb_radius, 0]) cylinder(h=upper_case_height+0.1, r=pcb_radius);
}
// threaded inserts
translate([-case_thickness, -case_thickness, 0]) cylinder(h=3, d=3);
translate([pcb_width-2*pcb_radius+case_thickness, -case_thickness, 0]) cylinder(h=3, d=3);
translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=3, d=3);
translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=3, d=3);
translate([20, pcb_depth - pcb_radius, 0]) lug(hole=false);
translate([pcb_width-2*pcb_radius - 20, pcb_depth - pcb_radius, 0]) lug(hole=false);
translate([20, -pcb_radius, 0]) lug(north_facing=false, hole=false);
translate([pcb_width-2*pcb_radius - 20, -pcb_radius, 0]) lug(north_facing=false, hole=false);
}

32
util.scad
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@ -2,16 +2,17 @@
$fn=64;
pcb_width = 139.7;
pcb_depth = 82.55;
pcb_width = 139.7+1;
pcb_depth = 82.55+1;
pcb_radius = 3.175;
pcb_thickness = 1.6;
plate_thickness = 1.5;
case_thickness = 5;
case_bottom_thickness = 5;
case_bottom_thickness = 5; // TODO: doesn't respect height of PCB plus switches etc
case_height = 10;
upper_case_height = 5;
standoff_height = 3;
@ -45,42 +46,42 @@ module lug(north_facing=true, hole=true) {
module mx_1x1_cutout() {
side_length = 14;
// central hole
translate([0, 0, pcb_thickness/2]) cube([side_length, side_length, pcb_thickness+0.1], center=true);
// wings
translate([side_length/2, 2.5+3.5/2, pcb_thickness/2]) cube([2*0.8, 3.5, pcb_thickness+0.1], center=true);
translate([side_length/2, -2.5-3.5/2, pcb_thickness/2]) cube([2*0.8, 3.5, pcb_thickness+0.1], center=true);
translate([-side_length/2, 2.5+3.5/2, pcb_thickness/2]) cube([2*0.8, 3.5, pcb_thickness+0.1], center=true);
translate([-side_length/2, -2.5-3.5/2, pcb_thickness/2]) cube([2*0.8, 3.5, pcb_thickness+0.1], center=true);
// rounded corners
translate([side_length/2-0.25, side_length/2-0.25, 0]) cylinder(h=pcb_thickness+0.1, r=0.5);
translate([side_length/2-0.25, -side_length/2+0.25, 0]) cylinder(h=pcb_thickness+0.1, r=0.5);
translate([-side_length/2+0.25, side_length/2-0.25, 0]) cylinder(h=pcb_thickness+0.1, r=0.5);
translate([-side_length/2+0.25, -side_length/2+0.25, 0]) cylinder(h=pcb_thickness+0.1, r=0.5);
}
module mx_1x2_cutout() {
side_length = 14;
// central hole
translate([0, 0, pcb_thickness/2]) cube([side_length, side_length+2, pcb_thickness+0.1], center=true);
// wings
translate([side_length/2, 2.5+3.5/2, pcb_thickness/2]) cube([2*0.8, 3.5, pcb_thickness+0.1], center=true);
translate([side_length/2, -2.5-3.5/2, pcb_thickness/2]) cube([2*0.8, 3.5, pcb_thickness+0.1], center=true);
translate([-side_length/2, 2.5+3.5/2, pcb_thickness/2]) cube([2*0.8, 3.5, pcb_thickness+0.1], center=true);
translate([-side_length/2, -2.5-3.5/2, pcb_thickness/2]) cube([2*0.8, 3.5, pcb_thickness+0.1], center=true);
// rounded corners
translate([side_length/2-0.25, side_length/2-0.25, 0]) cylinder(h=pcb_thickness+0.1, r=0.5);
translate([side_length/2-0.25, -side_length/2+0.25, 0]) cylinder(h=pcb_thickness+0.1, r=0.5);
translate([-side_length/2+0.25, side_length/2-0.25, 0]) cylinder(h=pcb_thickness+0.1, r=0.5);
translate([-side_length/2+0.25, -side_length/2+0.25, 0]) cylinder(h=pcb_thickness+0.1, r=0.5);
// stabilizers
translate([0, 0, pcb_thickness/2]) {
translate([-0.5, 11.9, 0]) cube([15, 8, pcb_thickness+0.1], center=true);
@ -90,25 +91,26 @@ module mx_1x2_cutout() {
module mx_2x1_cutout() {
side_length = 14;
// central hole
translate([0, 0, pcb_thickness/2]) cube([side_length+2, side_length, pcb_thickness+0.1], center=true);
// wings
translate([side_length/2, 2.5+3.5/2, pcb_thickness/2]) cube([2*0.8, 3.5, pcb_thickness+0.1], center=true);
translate([side_length/2, -2.5-3.5/2, pcb_thickness/2]) cube([2*0.8, 3.5, pcb_thickness+0.1], center=true);
translate([-side_length/2, 2.5+3.5/2, pcb_thickness/2]) cube([2*0.8, 3.5, pcb_thickness+0.1], center=true);
translate([-side_length/2, -2.5-3.5/2, pcb_thickness/2]) cube([2*0.8, 3.5, pcb_thickness+0.1], center=true);
// rounded corners
translate([side_length/2-0.25, side_length/2-0.25, 0]) cylinder(h=pcb_thickness+0.1, r=0.5);
translate([side_length/2-0.25, -side_length/2+0.25, 0]) cylinder(h=pcb_thickness+0.1, r=0.5);
translate([-side_length/2+0.25, side_length/2-0.25, 0]) cylinder(h=pcb_thickness+0.1, r=0.5);
translate([-side_length/2+0.25, -side_length/2+0.25, 0]) cylinder(h=pcb_thickness+0.1, r=0.5);
// stabilizer holes
translate([0, 0, pcb_thickness/2]) {
translate([11.9, -0.5, 0]) cube([8, 15, pcb_thickness+0.1], center=true);
translate([-11.9, -0.5, 0]) cube([8, 15, pcb_thickness+0.1], center=true);
}
}