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include <design.scad>
include <helpers.scad>
// `Heat` in module name means heat brass threaded insert
// in scanner coords:
// Z facing towards laser beam
// X facing right on laser beam plane
// Y facing top (for scanner body)
hole_side_front = [90, 0, 0];
hole_side_back = [-90, 0, 0];
hole_side_top = [180, 0, 0];
hole_side_bottom = [0, 0, 0];
hole_side_left = [0, 90, 0];
hole_side_right = [0, -90, 0];
hole_insert_height = 4;
m2_head_diameter = 3.75;
m2_head_height = 1.9;
m2 = 2;
padding_around_insert = 2;
// gw - glass width
// gh - glass height
// gt - glass thickness
// gcr - glass corner radius
module glass_hole(gw, gh, gt, gcr)
{
wt = $scannerBodyWallThicknessMm;
padding_around_glass = 0.4;
padding_under_glass = 1;
pag = padding_around_glass;
pug = padding_under_glass;
// visualize glass
color("yellow", 0.5)
hull()
{
for (x_mult = [-1, 1], y_mult = [-1, 1])
{
translate([
(-gw / 2 + gcr) * x_mult,
(-gh / 2 + gcr) * y_mult,
0])
cylinder($fn = dToFn(gcr * 2), r = gcr, h = gt);
}
}
// area to cut around glass
// TODO: create a module for such rounded rects
color("blue", 0.5)
hull()
{
w = gw + pag * 2;
h = gh + pag * 2;
// I'm not sure it's needed, but epoxy should
// have some thickness as well, and this padding should
// protect the glass a bit (the glass will not protrude
// from the scanner body)
t = gt + pag + $tiny_padding;
for (x_mult = [-1, 1], y_mult = [-1, 1])
{
translate([
(-w / 2 + gcr) * x_mult,
(-h / 2 + gcr) * y_mult,
// cut without artifacts
-$tiny_padding])
cylinder($fn = dToFn(gcr * 2), r = gcr, h = t);
}
}
// area to cut under glass
color("blue", 0.5)
hull()
{
w = gw - pug * 2;
h = gh - pug * 2;
// cut without artifacts
// area in front of glass is already taken
// into account above
t = wt + $tiny_padding;
for (x_mult = [-1, 1], y_mult = [-1, 1])
{
translate([
(-w / 2 + gcr) * x_mult,
(-h / 2 + gcr) * y_mult,
0])
cylinder($fn = dToFn(gcr * 2), r = gcr, h = t);
}
}
}
// see `glass_hole` docs for params details
module front_glass_hole(gw, gh, gt, gcr)
{
rotate([90, 0, 0])
glass_hole(gw, gh, gt, gcr);
}
// m - bolt deameter, like M2
// id - insert diameter
// il - insert length
// hd - screw head diameter
// hh - screw head height
// hs - hole side, see values above for details
// wt - wall thickness
// TODO: use `bolt` or `screw` everywhere
module screw_hole(m, id, il, hd, hh, hs, wt = $scannerBodyWallThicknessMm)
{
screw_diameter_delta = 0.2;
sdd = screw_diameter_delta;
head_diameter_delta = 1;
hdd = head_diameter_delta;
head_height_delta = 0.1;
hhd = head_height_delta;
subwall_thickness = 2;
rotate(hs)
{
// insert cutter
cylinder($fn = dToFn(id), d = id, h = il);
// screw cutter
rotate([180, 0, 0])
{
// full screw diameter
fsd = m + sdd;
translate([0, 0, -$tiny_padding])
cylinder($fn = dToFn(fsd), d = fsd, h = wt + $tiny_padding * 2);
// screw head cutter
// full head diameter
fhd = hd + hdd;
fhh = hh + hhd;
echo("hh:", hh);
echo("fhh:", fhh);
translate([0, 0, wt - fhh - $tiny_padding])
cylinder($fn = dToFn(fhd), d = fhd, h = fhh + $tiny_padding * 2);
}
}
}
function padded_hole_d(hd = 4) =
hd + padding_around_insert * 2;
// h - height
// hd - hole diameter
// TODO: support usual holes, not only hot inserts
module hole_holder(h, hd = 4)
{
d = padded_hole_d(hd);
cube_size = [d * 2, d / 2, h];
rotate([90, 0, 90])
translate([0, d / 2, -h / 2])
difference()
{
union()
{
cylinder($fn = dToFn(d), d = d, h = h);
translate([0, -cube_size[1] / 2, h / 2])
cube(cube_size, center = true);
}
union()
{
translate([-d, 0, -$tiny_padding])
cylinder($fn = dToFn(d), d = d, h = h + $tiny_padding * 2);
translate([d, 0, -$tiny_padding])
cylinder($fn = dToFn(d), d = d, h = h + $tiny_padding * 2);
}
}
}
// h - height
// hd - hole (insert) diameter
// hs - hole side, see values above for details
module hole_holder_hot_inserts(h, hd = 4, hs)
{
d = hd + padding_around_insert * 2;
rotate(hs)
difference()
{
hole_holder(h = 40, hd = 4);
// holes for hot inserts
union()
{
translate([-h / 2 - $tiny_padding, 0, d / 2])
screw_hole(
m = m2,
id = hd,
il = hole_insert_height,
hd = m2_head_diameter,
hh = m2_head_height,
hs = hole_side_left);
translate([h / 2 + $tiny_padding, 0, d / 2])
screw_hole(
m = m2,
id = hd,
il = hole_insert_height,
hd = m2_head_diameter,
hh = m2_head_height,
hs = hole_side_right);
}
}
}
hole_holder_hot_inserts(h = 40, hd = 4, hs = hole_side_top);
*screw_hole(
m = m2,
id = 4,
il = hole_insert_height * 2,
hd = m2_head_diameter,
hh = m2_head_height,
hs = hole_side_bottom);
//front_glass_hole(gw = 26.6, gh = 19.6, gt = 2, gcr = 1);
//screw_hole(2);
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