openscad/NopSCADlib
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PSU grills can now have different holes sizes, spacing, round or heaxagonal and avoid a list of rectangular regions.

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This commit is contained in:
Chris Palmer
2021-10-20 20:33:52 +01:00
parent 172bfb16d8
commit d19fad3f9f
1 changed files with 18 additions and 8 deletions
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26
vitamins/psu.scad
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@@ -124,19 +124,23 @@ function psu_face_transform(type, face) = //! Returns a transformation
translations = [h / 2, h / 2, l / 2 - left, l / 2 - right, w / 2, w / 2]
) translate([0, 0, h / 2]) * rotate(rotations[face]) * translate([0, 0, translations[face]]);
grill_hole = 4.5;
grill_gap = 1.5;
module psu_grill(width, height) {
module psu_grill(width, height, grill_hole = 4.5, grill_gap = 1.5, fn = 0, avoid = []) {
nx = floor(width / (grill_hole + grill_gap));
xpitch = width / nx;
ny = floor(height / ((grill_hole + grill_gap) * cos(30)));
ypitch = height / ny;
r = grill_hole / 2;
avoid = avoid ? [for(p = avoid) [[p.x - p[2] / 2 - r, p.y - p[3] / 2 - r], [p.x + p[2] / 2 + r, p.y + p[3] / 2 + r]]] : false;
function in(regions, x, y) = [for(r = regions) if(x >= r[0].x && x <= r[1].x && y >= r[0].y && y <= r[1].y) true];
for(y = [0 : ny - 1], x = [0 : nx - 1 - (y % 2)]) {
x = -width / 2 + (x + 0.5 + (y % 2) / 2) * xpitch;
y = -height / 2 + (y + 0.5) * ypitch;
translate([x, y])
circle(d = grill_hole);
if(!avoid || !in(avoid, x, y))
translate([x, y])
rotate(30)
circle(r, $fn = fn);
}
}
@@ -185,12 +189,18 @@ module psu(type) { //! Draw a power supply
translate(h)
drill(screw_pilot_hole(psu_screw(type)), 0);
if(psu_face_grill(f)) {
g = psu_face_grill(f);
if(g) {
list = is_list(g);
fn = list ? g[2] : 0;
hole = list ? g[0] : 4.5;
gap = list ? g[1] : 1.5;
avoid = list ? g[3] : [];
mx = 6;
my1 = i == f_top && psu_face_grill(faces[f_back]) ? 0 : 6;
my2 = i == f_back && psu_face_grill(faces[f_top]) ? 0 : 6;
translate([0, (my2 - my1) / 2])
psu_grill(xw - 2 * mx, yw - my1 - my2);
psu_grill(xw - 2 * mx, yw - my1 - my2, grill_hole = hole, grill_gap = gap, fn = fn, avoid = avoid);
}
if(fan)
translate([fan.x, fan.y]) intersection() {
@@ -234,7 +244,7 @@ module psu(type) { //! Draw a power supply
}
if(iec)
translate([iec.x, iec.y])
translate([iec.x, iec.y, t])
rotate(iec.z)
iec_assembly(iec[3], t);