Rubber stopper for JK projector reels
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/**
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* Rubber Stopper for JK Projector Reels
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*
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* To be used as a negative in a 2-part mold to cast stoppers
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* in rubber or silicone.
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**/
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time=0;
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module rubber_stopper_jk_projector () {
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OD = 19;
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ID = 6.57;
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H = 23;
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TRIANGLE = 9.44 +2.5;
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ROUND_D = 2;
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$fn = 120;
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difference () {
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//outer cylinder
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cylinder(r = OD / 2, h = H, center = true);
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//rounded corners
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for (i = [0 : 2]) {
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rotate([0, 0, 120 * i]) {
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translate ([(TRIANGLE / 2) - (ROUND_D), 0, 0]) {
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cylinder(r = ROUND_D / 2, h = H + 1, center = true);
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}
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}
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}
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//triangle
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difference () {
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cylinder(r = TRIANGLE / 2, h = H + 1, center = true, $fn = 3);
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for (i = [0 : 2]) {
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rotate([0, 0, 120 * i]) {
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translate ([(TRIANGLE / 2) - .5, 0, 0]) {
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cube([ROUND_D, ROUND_D, H + 1], center = true);
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}
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}
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}
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}
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}
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}
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//reference
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//cylinder(r = 6.57 / 2, h = 50, center = true, $fn=60);
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rotate([0, 0, time]) rubber_stopper_jk_projector();
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