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scitas-mini-cluster/rack/pcb_support.scad
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pcb_support.scad
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include <config.scad>
module pad(position, radius, length) {
translate([0, radius, 0]) hull () {
translate(position) circle(r=radius);
translate(position + [0, length,0]) circle(r=radius);
}
}
module pcb_support(num, hole_spacing, x_margin, y_margin, thickness, screw_hole) {
radius = 6;
s = 5;
support = hole_spacing + [x_margin*2, y_margin[0]+y_margin[1]];
hole_p = hole_spacing / 2;
plate_x = support[0] - radius*2;
x = (support[0]/2-radius);
y1 = - (hole_p[1] + y_margin[1]);
y2 = hole_p[1] + y_margin[0] - radius * 2 - s;
translate([hole_spacing[0]/2+x_margin,hole_spacing[1]/2+y_margin[1],0])
linear_extrude(height = thickness)
difference() {
union () {
translate([-plate_x/2, -hole_p[1]-y_margin[1], 0]) {
square(size = [plate_x, support[1]]);
}
union() {
pad([-x, y1, 0], radius, 15+s);
polygon([[-x+3, y1], [-x+3, y1-10], [-x-radius+5, y1-10],
[-x-radius+5, y1-8], [-x-radius,y1-2], [-x-radius-3, y1-2],
[-x-radius-3,y1], [-x-radius-1,y1+3], [-x-radius, y1+10], [-x+3, y1+10]]);
}
union() {
pad([ x, y1, 0], radius, 15+s);
polygon([[x-3, y1], [x-3, y1-10],
[x+radius-5, y1-10], [x+radius-5, y1-8],
[x+radius,y1-2], [x+radius+3, y1-2],
[x+radius+3,y1], [x+radius+1,y1+3],
[x+radius, y1+10], [x-3, y1+10]]);
}
pad([-x, y2, 0], radius, s);
pad([ x, y2, 0], radius, s);
}
polygon([[-x-2,y1+3], [-x,y1], [-x+5, y1],
[-x+5,y1+2], [-x+1.5,y1+2], [-x,y1+4],
[-x,y1+3],[-x,y1+18],[-x-2,y1+18]]);
translate([-x-1,y1+18]) circle(d=3, $fn = circle_res);
polygon([[x+2,y1+3], [x, y1], [x-5, y1],
[x-5,y1+2], [x-1.5,y1+2], [x,y1+4],
[x,y1+3],[x,y1+18],[x+2,y1+18]]);
translate([x+1,y1+18]) circle(d=3, $fn = circle_res);
text(str(num), halign = "center", valign = "center");
translate([-hole_p[0], hole_p[1], 0]) circle(d= screw_hole, $fn=circle_res);
translate([-hole_p[0], -hole_p[1], 0]) circle(d =screw_hole, $fn=circle_res);
translate([ hole_p[0], hole_p[1], 0]) circle(d= screw_hole, $fn=circle_res);
translate([ hole_p[0], -hole_p[1], 0]) circle(d =screw_hole, $fn=circle_res);
}
}
hole_spacing = [49, 58];
x_margin = 10;
y_margin = [10, 23];
m3 = 3;
pvc_thickness = 3;
pcb_support("test", hole_spacing, x_margin, y_margin, pvc_thickness, m3);
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