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A bigger flat flat_size = 5 square(top_rounding_radius + pad, top_rounding_radius + pad); circle(r = top_rounding_radius, $fn = top_rounding_faces cylinder(h = stem_height + nothing, = stem_radius, $fn = top_rounding_faces cylinder(h = stem_height + nothing, = stem_radius, r2 = knob_radius_top, h = shafthole_height, $fn = top_rounding_faces square(top_rounding_radius + pad, top_rounding_radius + pad); rotate_extrude(convexity = 5, $fn = shafthole_faces); // Adapt to a company name if they're disqualified for some reason, like if 5 PCBs cost >$150; no need to mess with this. Less than 5 makes it disappear. You can, however, // set screw hole // D shaft shape for shaft center=true); // Pointer1: Offset hemispherical divot sphere(r=DivotRadius, $fn=40); // Divot1: Centered cylynrical divot // Divot1: Centered cylynrical divot // Hole.

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