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106 lines
3.3 KiB
OpenSCAD
Executable File
106 lines
3.3 KiB
OpenSCAD
Executable File
face_length = 56.55;
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face_width = 14.85;
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face_thickness = 2.6;
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face_inset = (face_width - 14.65)/2; // amount the sides will slope inward, per side
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rear_length = 51.0;
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rear_width = 9.5;
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rear_thickness = 4.5 - face_thickness;
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screw_spacing = 47;
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screw_d = 3.1;
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screw_head_d = screw_d * 1.85;
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screw_head_t = face_thickness * 0.4;
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slope_screw_heads = false;
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notch_width = 7.5;
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notch_length = 39;
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notch_x_offset = 4.5; // from centreline
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total_thickness = face_thickness + rear_thickness;
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ff = 0.01;
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$fn = 64;
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// inset is how far in the sides will slop, per side
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module rounded_top_rectangle(width, length, height, inset=0, rad=6) {
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hull() {
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// rounded sides
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// translate([rad,rad,0]) cylinder(r=rad, h=height-rad);
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// translate([width-rad,rad,0]) cylinder(r=rad, h=height-rad);
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// translate([width-rad,length-rad,0]) cylinder(r=rad, h=height-rad);
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// translate([rad,length-rad,0]) cylinder(r=rad, h=height-rad);
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translate([rad,rad,0]) cylinder(r=rad, h=ff);
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translate([width-rad,rad,0]) cylinder(r=rad, h=ff);
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translate([width-rad,length-rad,0]) cylinder(r=rad, h=ff);
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translate([rad,length-rad,0]) cylinder(r=rad, h=ff);
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// rounded top
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translate([rad+inset,rad+inset,height-rad]) sphere(r=rad);
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translate([width-(rad+inset),(rad+inset),height-rad]) sphere(r=rad);
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translate([width-(rad+inset),length-(rad+inset),height-rad]) sphere(r=rad);
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translate([(rad+inset),length-(rad+inset),height-rad]) sphere(r=rad);
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}
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}
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module rounded_rectangle(width, length, height, inset=0, rad=6, fn=32) {
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hull() {
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// rounded sides
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translate([rad,rad,0]) cylinder(r=rad, h=height);
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translate([width-rad,rad,0]) cylinder(r=rad, h=height);
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translate([width-rad,length-rad,0]) cylinder(r=rad, h=height);
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translate([rad,length-rad,0]) cylinder(r=rad, h=height);
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}
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}
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module face() {
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intersection() {
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cube([face_width, face_length, face_thickness]);
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rounded_top_rectangle(face_width, face_length, face_thickness, inset=face_inset, rad=face_thickness/3);
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}
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}
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module rear() {
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rounded_rectangle(rear_width, rear_length, rear_thickness, rad=1);
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}
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module blank_cover() {
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difference() {
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union() {
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translate([(face_width-rear_width)/2, (face_length-rear_length)/2, 0]) rear();
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translate([0, 0, rear_thickness]) face();
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}
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translate([face_width/2, face_length/2, -ff]) for (sign=[1,-1]) {
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translate([0, (screw_spacing/2)*sign, 0]) {
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cylinder(d=screw_d, h=total_thickness+(ff*2));
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translate([0, 0, total_thickness-screw_head_t]) {
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if (slope_screw_heads) {
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cylinder(d1=screw_d, d2=screw_head_d, h=screw_head_t+(ff*2));
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} else {
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cylinder(d=screw_head_d, h=screw_head_t+(ff*2));
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}
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}
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}
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}
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}
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}
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difference() {
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blank_cover();
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translate([((face_width-notch_width)/2) + notch_x_offset, (face_length-notch_length)/2, -ff]) {
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flared_width = (face_width-notch_width)*1.5;
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flared_length = notch_length * 1.0;
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rounded_rectangle(notch_width, notch_length, total_thickness/2, rad=1);
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translate([0, 0, (total_thickness/2)-ff]) hull() {
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rounded_rectangle(notch_width, notch_length, ff, rad=1);
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translate([(notch_width-flared_width)/2, (notch_length-flared_length)/2, (total_thickness/2)+ff])
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rounded_rectangle(flared_width, flared_length, ff, rad=1);
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}
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}
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}
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