Super-8 to 16mm reel adapter. Used to hold Super-8 reels on the square reel holders of the JK optical printer. Will also work on rewinds.
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time = 0;
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module s8_16mm_reel_adapter () {
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BOTTOM_D = 20.53;
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BOTTOM_H = 2;
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D = 12.72;
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H = 13;
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SQUARE = 8;
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TAPER = 1.4;
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PEG_H = 4.9;
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PEG_L = 3.18;
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PEG_W = 1.5;
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$fn = 200;
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difference () {
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union () {
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cylinder(r = BOTTOM_D / 2, h = BOTTOM_H, center = true);
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translate([0, 0, (BOTTOM_H / 2) + H / 2]) cylinder(r = D / 2, h = H, center = true);
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translate([0, 0, (BOTTOM_H / 2) + H + (TAPER / 2)]) cylinder(r1 = D / 2, r2 = (D / 2) - TAPER, h = TAPER, center = true);
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}
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cube([SQUARE, SQUARE, 60], center = true);
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}
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for (i = [0 : 2]) {
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rotate([0, 0, i * 120]) translate([0, (D / 2) + (PEG_L / 2) - (PEG_W / 2), (BOTTOM_H / 2) + (PEG_H / 2)]) cube([PEG_W, PEG_L, PEG_H], center = true);
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rotate([0, 0, i * 120]) translate([0, (D / 2) + (PEG_L / 2) + (PEG_W / 2), (BOTTOM_H / 2) + (PEG_H / 2)]) cylinder(r = PEG_W / 2, h = PEG_H, center = true, $fn = 40);
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}
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}
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module reel_reference () {
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SQUARE = 7.95;
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translate([0, 0, 12.3 - 1]) {
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difference() {
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union() {
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translate([0, 0, -(12.3 / 2)]) cube([SQUARE, SQUARE, 12.3], center = true);
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rotate([0, 90, 0]) cylinder(r = SQUARE / 2, h =8, center = true);
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rotate([0, 90, 90]) cylinder(r = SQUARE / 2, h =8, center = true);
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}
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for (i = [0 : 4]) {
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rotate([0, 0, i * 90]) translate([0, 4.9, 1]) rotate([12, 0, 0]) cube([SQUARE, 2, 10], center = true);
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}
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}
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}
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translate([0, 0, (39 / 2)]) cylinder(r = 6.57 / 2, h = 39, center = true, $fn = 60);
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}
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rotate([0, 0, time]) s8_16mm_reel_adapter();
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//color("red") translate([0, 0, -2]) reel_reference();
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