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ssr.scad
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mount_t = 3;
mount_gap = .75;
mount_lipinset = 1;
ssr_w=45.15;
ssr_l=60.27;
ssr_t=22.95;
ssr_lip_t=2.54;
ssr_lip_w=2.23;
ssr_slot_width=10;
ssr_slot_depth = 11.33;
ssr_slot_bottom_thickness=4.04;
ssr_hole_diam = 4.08;
ssr_hole_diam2 = 6.4;
ssr_indent_l = 30.06;
ssr_indent_w = 42.85;
ssr_indent_t = 0.96;
ssr_posthole_in = 3.2;
ssr_posthole_w = 11.08;
ssr_posthole_l = 14.03;
ssr_posthole_t = 8.55;
//this is set fo a #4 machine screw.
nutTrapWidth=1/4*25.4;
nutTrapHieight=3/32*25.4;
mount_h_d=5;
mount_head_clear = 4;
mount_dist=50;
mount_round=9;
wire_hole_w = mount_dist-2*(mount_head_clear+mount_h_d/2);
wire_hole_d = 18.5;
wire_hole_h1 = 9;
wire_hole_h2 = 11;
module ssr(){
difference(){
union(){
//body
color("gray")
translate([0,0,ssr_t/2])
cube([ssr_w,ssr_l,ssr_t], center=true);
//bottom plate
color("silver")
translate([0,0,ssr_lip_t/2])
cube([ssr_w,ssr_l+2*ssr_lip_w,ssr_lip_t], center=true);
}
for (y=[-1,1]){
//screw slot
translate([0,y*(ssr_l/2-ssr_slot_depth+ssr_slot_width/2),ssr_t/2+ssr_slot_bottom_thickness])
cylinder(r=ssr_slot_width/2, h=ssr_t, center=true);
translate([0,y*(ssr_l/2),ssr_t/2+ssr_slot_bottom_thickness])
cube([ssr_slot_width, 2*(ssr_slot_depth-ssr_slot_width/2), ssr_t], center=true);
//screw hole
translate([0,y*(ssr_l/2-ssr_slot_depth+ssr_slot_width/2),0])
cylinder(r=ssr_hole_diam/2, h=ssr_t*3, center=true);
}
//label and light indent
translate([0,0,ssr_t])
cube([ssr_indent_w,ssr_indent_l,ssr_indent_t*2], center=true);
//binding post holes
for (x=[-1,1])
for (y=[-1,1])
translate([x*(ssr_w/2-ssr_posthole_w/2-ssr_posthole_in),y*ssr_l/2,ssr_t])
cube([ssr_posthole_w,ssr_posthole_l*2,ssr_posthole_t*2], center=true);
}
}
module nut(w, h){
translate([0,0,h/2])
for (i=[1:3])
rotate([0,0,60*i])
cube([w, w/sqrt(3), h], center=true);
}
module mount_plate(){
difference(){
union(){
//smaller rectangle
translate([0,0,(mount_t+mount_lipinset)/2])
cube([ssr_w+2*(mount_gap),ssr_l+2*ssr_lip_w+2*(mount_gap),mount_t+mount_lipinset], center=true);
//big rectangle
translate([0,0,mount_t/2])
cube([ssr_w+2*(mount_t+mount_gap),ssr_l+2*ssr_lip_w+2*(mount_t+mount_gap),mount_t], center=true);
//mounting tabs
for (y=[-1,1]){
translate([0,y*(ssr_l/2+ssr_lip_w+mount_gap+mount_h_d/2+mount_t+mount_head_clear),mount_t/2])
cube([mount_dist,2*mount_round,mount_t], center=true);
for (x=[-mount_dist/2,mount_dist/2])
translate([x,y*(ssr_l/2+ssr_lip_w+mount_gap+mount_h_d/2+mount_t+mount_head_clear),0])
cylinder(r=mount_round, h=mount_t);
}
}
//ssr screw hole
for (y=[-1,1]){
translate([0,y*(ssr_l/2-ssr_slot_depth+ssr_slot_width/2),0]){
cylinder(r=ssr_hole_diam/2, h=(mount_t+mount_lipinset)*3, center=true);
//nut trap
translate([0,0,-1])
nut(nutTrapWidth, nutTrapHieight+1);
}
//mount screw hole
for (y=[-1,1])
for (x=[-mount_dist/2,mount_dist/2])
translate([x,y*(ssr_l/2+ssr_lip_w+mount_gap+mount_h_d/2+mount_t+mount_head_clear),0])
cylinder(r=mount_h_d/2, h=mount_t*3, center=true);
}
}
}
module mount_cover(){
difference(){
union(){
//big rectangle
translate([0,0,(mount_lipinset+ssr_t+mount_gap+mount_t)/2])
cube([ssr_w+2*(mount_t+mount_gap),ssr_l+2*ssr_lip_w+2*(mount_t+mount_gap),mount_lipinset+ssr_t+mount_gap+mount_t], center=true);
//wire covers
translate([0,0,(wire_hole_h1+wire_hole_h2+mount_t)/2])
cube([wire_hole_w+2*mount_t, ssr_l+2*wire_hole_d+2*mount_t, wire_hole_h1+wire_hole_h2+mount_t], center=true);
//mounting tabs
for (y=[-1,1]){
translate([0,y*(ssr_l/2+ssr_lip_w+mount_gap+mount_h_d/2+mount_t+mount_head_clear),mount_t/2])
cube([mount_dist,2*mount_round,mount_t], center=true);
for (x=[-mount_dist/2,mount_dist/2])
translate([x,y*(ssr_l/2+ssr_lip_w+mount_gap+mount_h_d/2+mount_t+mount_head_clear),0])
cylinder(r=mount_round, h=mount_t);
}
}
//smaller rectangle
translate([0,0,(mount_lipinset+ssr_t+mount_gap)/2-1])
cube([ssr_w+2*(mount_gap),ssr_l+2*ssr_lip_w+2*(mount_gap),mount_lipinset+ssr_t+mount_gap+2], center=true);
//label hole
translate([0,0,mount_lipinset+ssr_t+mount_gap+mount_t])
cube([ssr_indent_w,ssr_indent_l,mount_t*3], center=true);
//binding post holes
translate([0,0,(wire_hole_h1+wire_hole_h2)/2-1])
cube([wire_hole_w, ssr_l+2*wire_hole_d, wire_hole_h1+wire_hole_h2+2], center=true);
translate([0,0,wire_hole_h1/2-1])
cube([wire_hole_w, ssr_l+2*wire_hole_d+ 2*mount_round+1, wire_hole_h1+2], center=true);
//mount screw hole
for (y=[-1,1])
for (x=[-mount_dist/2,mount_dist/2])
translate([x,y*(ssr_l/2+ssr_lip_w+mount_gap+mount_h_d/2+mount_t+mount_head_clear),0])
cylinder(r=mount_h_d/2, h=mount_t*3, center=true);
}
}
module display_ssr(color="orange"){
ssr();
color(color)
translate([0,0,-mount_t-mount_lipinset])
mount_plate();
color(color)
translate([0,0,-mount_lipinset])
mount_cover();
}
module print(){
mount_plate();
translate([mount_dist + 2* mount_round+2,0,0])
mount_cover();
}
//display_ssr();
print();