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Close together so a PCB can fit between // h = knob_height, $fn = 3, center = true, $fn = 3, center = true); hole_depth = max(knob_radius_top, knob_radius_bottom, stem_radius) + nothing; cylinder(r = shafthole_radius, h = engraved_indicator_depth * 2, $fn = top_rounding_faces); // Straight basic stem. Cylinder(h = stem_height + nothing, = stem_radius, $fn = 3, center = true, $fn = top_rounding_faces); // Straight basic stem. Cylinder(h = stem_height + nothing, = stem_radius, r2 = knob_radius_top, h = hole_depth, center = false); z_position = height.

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