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(sqrt(pow(KnobHeight, 2) cube([2, 2, KnobHeight+.001], center=true); if (RingMarkings>0 for (i=[0 : RingMarkings-1] rotate([0, 0, 90]) // To align a face with the indicator, setscrew or outer faces. [degrees] sphere_indents_offset_angle = 0.

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