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Lomo screw #1

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sixteenmillimeter merged 20 commits from lomo_screw into master 2018-03-05 22:19:42 +00:00
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1 changed files with 45 additions and 14 deletions
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59
models/lomo_top_screw/lomo_top_screw.scad
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@ -4,33 +4,57 @@ include <../../libraries/Triangles.scad>;
D = 50;
THICKNESS = 2.5;
H = 23;
ROUND = 6;
H = 19.5;
ROUND = 8;
HANDLE_D = 13.25;
NOTCHES = 17;
NOTCH = 1.5;
FINE = 20;
module lomo_top_screw () {
difference () {
translate([0, 0, ROUND + 2.75]) minkowski () {
cylinder(r = (D / 2) - ROUND, h = (H * 2) - ROUND, center = true, $fn = 200);
sphere(r = ROUND, center = true, $fn = 200);
translate([0, 0, ROUND - 2]) minkowski () {
cylinder(r = (D / 2) - ROUND, h = (H * 2) - ROUND, center = true, $fn = FINE);
sphere(r = ROUND, center = true, $fn = FINE);
}
translate([0, 0, ROUND + 2.75 + THICKNESS]) minkowski () {
translate([0, 0, ROUND - 2+ THICKNESS]) minkowski () {
cylinder(r = (D / 2) - THICKNESS - ROUND, h = (H * 2) - ROUND, center = true, $fn = 200);
sphere(r = ROUND, center = true, $fn = 200);
sphere(r = ROUND, center = true, $fn = FINE);
}
translate([0, 0, H + ROUND - 0.4]) cylinder(r = (D / 2) + 1, h = H * 2, center = true);
translate([0, 0, H + ROUND - 4 - 3]) cylinder(r = (D / 2) + 1, h = H * 2, center = true);
//half
//translate([45, 0, 0]) cube([90, 90, 90], center = true);
//}
//bevel
//inner bevel
translate([0, 0, (H / 2) - ROUND - 1]) cylinder(r1 = (D / 2) - 2.5, r2 = (D / 2) - 2.5 + 1, h = 1, center = true, $fn = FINE);
//outer bevel
translate([0, 0, (H / 2) - ROUND - 1]) {
difference () {
cylinder(r = (D / 2) + .25, h = 1, center = true, $fn = FINE);
cylinder(r2 = (D / 2) - .8, r1 = (D / 2) - .8 + 1, h = 1, center = true, $fn = FINE);
}
}
}
//reference cylinder
//translate([0, 0, -6.6]) color("red") cylinder(r = 50 / 2, h = 19.57, center = true);
//handle
translate([0, 0, -14.5]) {
translate([0, 0, -15]) {
difference() {
cylinder(r1 = 16/ 2, r2 = 13 / 2, h = 54.5, $fn = 100);
cylinder(r1 = 16/ 2, r2 = 13 / 2, h = 54.5, $fn = FINE);
//ring
translate([0, 0, 31 + 14.5]) {
difference () {
cylinder(r = HANDLE_D / 2 + 2, h = 20, center = true);
cylinder(r = HANDLE_D / 2 - .5, h = 20 + 1, center = true);
}
}
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]) {
translate([0, HANDLE_D / 2 - .5, 31 + 14.5]) {
rotate([0.75, 0, 0]) rotate([0, 0, 45]) {
Right_Angled_Triangle(a = NOTCH, b = NOTCH, height = 20, centerXYZ=[true, true, true]);
}
}
@ -38,9 +62,16 @@ module lomo_top_screw () {
}
}
}
//attach handel with pyramid cylinder
translate ([0, 0, -13.7]) {
cylinder(r1 = 16 / 2 + 2, r2 = 16 / 2 - .1, h = 3, center = true, $fn = FINE);
}
//plate under cup
translate([0, 0, -17.75]) cylinder(r = 31.5 / 2, h = 1, center = true, $fn = FINE);
//screw
translate([0, 0, -36]) metric_thread (diameter=13.6, pitch=1.5 ,thread_size = 1.6, length = 21);
//translate([0, 0, -37.5]) metric_thread (diameter=13.6, pitch=1.5 ,thread_size = 1.6, length = 21);
//cylinder plug
translate([0, 0, -37.5 + (21 / 2) - 1]) cylinder(r = 12 / 2, h = 21, center = true, $fn = FINE);
}
//import("./lomo_part_half.stl");
rotate([0, 0, t]) lomo_top_screw();