86 lines
3.0 KiB
OpenSCAD
86 lines
3.0 KiB
OpenSCAD
button_od = 23.6; // Outside diameter of button
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tab_offset = 22; // How far down the button the little tabs are
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tab_width = 4; // Size of the tabs
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tab_protrusion = 1.5; // How far tabs stick out
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guide_size = 2.5; // How wide the guide channels are
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wall_width = 1.8; // How thick should the walls be
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rod_od = 3.5; // The outside diameter of the rod
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button_curvature_depth = 5;
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button_wall = 1;
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// Computed values
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button_id = button_od - wall_width*2;
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rod_width = rod_od / sqrt(2); // It's easier to print if the rod is square
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button_height = 24; // How tall the button is
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inset_height = button_curvature_depth + button_wall;
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module rod(width, height) {
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translate([-width/2, -width/2, 0]) cube([width, width, height]);
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}
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rotate(180, [1, 0, 0]) {
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difference() {
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union() {
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// Outer button
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difference() {
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cylinder(h=button_height, r=button_od/2, $fn=360);
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// Inner cup for the rod
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translate([0, 0, inset_height]) {
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rod(rod_width + 0.2, button_height);
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}
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// There's this guiderail thingy
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for (a = [30, 150, 270]) {
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rotate(a=a, v=[0,0,1]) {
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translate([button_id/2 + wall_width - 0.8, -guide_size/2, 0]) {
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cube([wall_width, guide_size, button_height+1]);
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}
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}
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}
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// The part you press with your finger
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rotate(a=-60, v=[0,0,1]) {
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// The button is actually sloped
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rotate(a=-4, v=[1,0,0]) {
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translate([-button_od, -button_od, -1.185]) {
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cube([button_od*2, button_od*2, 2]);
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}
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}
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// A little curvature on outside where you press the button
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resize([button_od*.75, button_od*.75, button_curvature_depth+3]) {
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sphere(r=10, , $fn=90);
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}
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}
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// There's a cutout on the right side at the end. I just eyeballed it.
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rotate(a=-50, v=[0,0,1]) {
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translate([button_od*.39, -button_od/2, button_height-4]) {
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cube(button_od);
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}
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}
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}
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// Tabs on the side for stops
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intersection() {
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union() {
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for (a = [0, 180]) {
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rotate(a=a, v=[0,0,1]) {
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translate([(button_od - wall_width)/2, 0, tab_offset+1]) {
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cube([wall_width+tab_protrusion, tab_width, 2], center=true);
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}
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}
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}
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}
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cylinder(h=button_height, r1=button_od, r2=button_od/2, $fn=360);
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}
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}
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}
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}
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