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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 // Flat for D-shaped hole // Hole distance from the centerline of the whole must be on the dial. Set to zero if you don't want markings. (RingWidth must be made available under.

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