sixteenmillimeter-tools/models/lomo_top_screw/lomo_top_screw.scad

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t = 0;
include <../../libraries/threads.scad>;
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include <../../libraries/Triangles.scad>;
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D = 50;
THICKNESS = 2.5;
H = 23;
ROUND = 6;
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HANDLE_D = 13.25;
NOTCHES = 17;
NOTCH = 1.5;
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module lomo_top_screw () {
difference () {
translate([0, 0, ROUND + 2.75]) minkowski () {
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cylinder(r = (D / 2) - ROUND, h = (H * 2) - ROUND, center = true, $fn = 200);
sphere(r = ROUND, center = true, $fn = 200);
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}
translate([0, 0, ROUND + 2.75 + THICKNESS]) minkowski () {
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cylinder(r = (D / 2) - THICKNESS - ROUND, h = (H * 2) - ROUND, center = true, $fn = 200);
sphere(r = ROUND, center = true, $fn = 200);
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}
translate([0, 0, H + ROUND - 0.4]) cylinder(r = (D / 2) + 1, h = H * 2, center = true);
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//bevel
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}
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//handle
translate([0, 0, -14.5]) {
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difference() {
cylinder(r1 = 16/ 2, r2 = 13 / 2, h = 54.5, $fn = 100);
for(i = [0 : NOTCHES]) {
rotate([0, 0, i * (360 / NOTCHES)]) {
translate([0, HANDLE_D / 2, 31 + 14.5]) {
rotate([1, 0, 0]) rotate([0, 0, 45]) {
Right_Angled_Triangle(a = NOTCH, b = NOTCH, height = 20, centerXYZ=[true, true, true]);
}
}
}
}
}
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}
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//screw
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translate([0, 0, -36]) metric_thread (diameter=13.6, pitch=1.5 ,thread_size = 1.6, length = 21);
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}
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//import("./lomo_part_half.stl");
rotate([0, 0, t]) lomo_top_screw();