143 lines
2.9 KiB
OpenSCAD
143 lines
2.9 KiB
OpenSCAD
inner_ring();
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outer_ring();
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spokes();
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module inner_ring() {
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difference() {
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cylinder(h=4, d=70, $fn=500);
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translate([0, 0, -1])
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cylinder(h=6, d=55, $fn=500);
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}
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}
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module outer_ring() {
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difference() {
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union() {
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cylinder(h=4, d=210, $fn=500);
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bend1();
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bend2();
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ring();
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}
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translate([0, 0, -1])
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cylinder(h=6, d=195, $fn=500);
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translate([-220, -150, -10])
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cube([220, 300, 200]);
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}
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}
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module spokes() {
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for (a = [-55 : 27.5 : 55]) {
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rotate([0, 0, a])
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translate([30, -5, 0])
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cube([70, 10, 4]);
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}
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translate([0, 30, 0])
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cube([10, 70, 4]);
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translate([0, -100, 0])
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cube([10, 70, 4]);
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}
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module bend1() {
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translate([0, 0, 10])
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rotate_extrude($fn=500)
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translate([105, 0, 0])
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difference() {
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circle(d=20, $fn=500);
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circle(d=12, $fn=500);
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translate([-10, 0, 0])
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square(20);
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translate([-20, -10, 0])
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square(20);
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}
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}
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module bend2() {
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translate([0, 0, 75])
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rotate_extrude($fn=500)
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translate([100, 0, 0])
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difference() {
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circle(d=30, $fn=500);
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circle(d=22, $fn=500);
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translate([-20, -40, 0])
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square(40);
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translate([-30, 0, 0])
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rotate([0, 0, -15])
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square(60, center=true);
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}
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}
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module ring() {
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difference() {
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union() {
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translate([0, 0, 10])
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cylinder(h=65, d=230, $fn=500);
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difference() {
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translate([-13, 0, 44])
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// torus(i=57, o=147, xs=0.5, $fn=500);
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torus2(r1=101, r2=45, xs=0.6, $fn=500);
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cube([200, 200, 200]);
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}
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}
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translate([0, 0, -20])
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cylinder(h=150, d=221, $fn=500);
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for (a = [-84 : 6 : 84]) {
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for (h = [15 : 18 : 69]) {
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p = (a + 84) / 168;
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d = 10 * pow(p, 0.8);
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rotate([0, 0, a])
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translate([100, 0, h])
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rotate([0, 90, 0])
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cylinder(h=50, d=d, $fn=50);
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}
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}
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for (a = [-87 : 6 : 87]) {
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for (h = [24 : 18 : 63]) {
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p = (a + 87) / 174;
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d = 10 * pow(p, 0.8);
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rotate([0, 0, a])
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translate([100, 0, h])
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rotate([0, 90, 0])
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cylinder(h=50, d=d, $fn=50);
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}
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}
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}
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}
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module torus(i, o, xs=1.0, ys=1.0) {
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r = (o - i) / 2;
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rotate_extrude()
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translate([i + r, 0, 0])
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scale([xs, ys, 1.0])
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circle(r);
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}
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module torus2(r1, r2, xs=1.0, ys=1.0) {
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rotate_extrude()
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translate([r1, 0, 0])
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scale([xs, ys, 1.0])
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circle(r2);
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} |