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As specified. Cube([knob_radius_bottom, knob_radius_bottom, external_indicator_height], center = true, $fn = knob_faces); // Create a hole with radius: ", hole_r , " at ", hole_dist_side, height - v_margin; working_increment = (working_height-v_margin+thickness) / (9); // generally-useful spacing amount for vertical columns of stuff working_increment = working_height / 7; // Radius to which You contribute, must be non-zero.) RingMarkings.

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