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Step rotary switch? Special: this needs a _big_ knob, these are some setup variables... You probably won't need to mess with them. Negative_knob_radius = knob_radius_bottom*-1; // this one is easy hole_bottom = hole_top - 90; DivotRadius = KnobMinorRadius*.4; // Primary knob cylinder for (i=[0 : RingMarkings-1] rotate([0, 0, 90 + cone_indents_offset_angle .

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