66 lines
1.4 KiB
OpenSCAD
66 lines
1.4 KiB
OpenSCAD
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CIRCLE_ROUNDS=180;
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// Piston
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difference() {
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// Main Cylinder
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cylinder(h=10, d=10, $fn=CIRCLE_ROUNDS);
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// Main cutout
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rotate([90, 0, 0])
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translate([0, 1, -5]) {
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cylinder(h=10, d=8, $fn=CIRCLE_ROUNDS);
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}
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translate([-4, -3, 0])
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cube([8, 6, 1]);
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// Tapering cutout on the bottom
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difference() {
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cylinder(h=5, d=10, $fn=CIRCLE_ROUNDS);
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cylinder(h=5, d=9, $fn=CIRCLE_ROUNDS);
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}
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// gudgeon pin hole
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rotate([0, 90, 0])
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translate([-2, 0, -5])
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cylinder(h=10, d=2, $fn=CIRCLE_ROUNDS);
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}
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// Gudgeon pin
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difference() {
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rotate([0, 90, 0])
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translate([-2, 0, -4.5])
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cylinder(h=9, d=2, $fn=CIRCLE_ROUNDS);
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rotate([0, 90, 0])
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translate([-2, 0, -4.5])
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cylinder(h=9, d=1.5, $fn=CIRCLE_ROUNDS);
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}
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// Rod
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difference() {
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union() {
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// rod shaft
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translate([-1, -1.5, -13])
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cube([2, 3, 15]);
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// rod pin hole
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rotate([90, 0, 90])
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translate([0, 2, -2])
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cylinder(h=4, d=4, $fn=CIRCLE_ROUNDS);
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// crankshaft hole
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rotate([90, 0, 90])
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translate([0, -13, -2])
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cylinder(h=4, d=3, $fn=CIRCLE_ROUNDS);
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}
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// gudgeon pin cutout
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rotate([0, 90, 0])
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translate([-2, 0, -4.5])
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cylinder(h=9, d=2, $fn=CIRCLE_ROUNDS);
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// crankshaft cutout
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rotate([0, 90, 0])
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translate([13, 0, -2])
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cylinder(h=4, d=2, $fn=CIRCLE_ROUNDS);
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}
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