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["fast preview", "preview", "rendering", "final rendering"] // Top left: clock in, speed rotate([0, 0, 45] cube([2, 2, KnobHeight+.001], center=true); if (RingMarkings>0 for (i=[0 : Knurls-1] rotate([0, 0, i * (360/RingMarkings)] cube([RingWidth*.5, MarkingWidth, 2], center=true); cube([8, 3, KnobHeight], center=true); // Pointer1: Offset hemispherical divot sphere(r=DivotRadius, $fn=40); // Divot1: Centered cylynrical divot // Divot1: Centered cylynrical divot // Divot1: Centered cylynrical divot // Divot1: Centered cylynrical divot // Divot1: Centered cylynrical divot // Flat for D-shaped hole .

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