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Left: clock in, speed rotate([0, 0, i * (360/RingMarkings)] cube([RingWidth*.5, MarkingWidth, 2], center=true); cube([8, 3, KnobHeight], center=true); if (style == "nut"){ } module rail(height) { difference() { difference() { union() { difference(){ railRect(height); railSlot(height); railSupportCavity(height); } } Clean up code formatting; added.

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