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R2 = knob_radius_top, h = engraved_indicator_depth * 2, $fn = top_rounding_faces square(top_rounding_radius + pad, top_rounding_radius + pad); circle(r = top_rounding_radius, $fn = smooth // outer pointy indicator // cube size of 8 minimum to point out as specified. Cube([knob_radius_bottom, knob_radius_bottom, external_indicator_height], center = true, $fn = stem_faces); // Widening part at.

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