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75 + tolerance; // left_rib_x = thickness * 1.2; right_rib_x = width_mm - thickness*2; // draw a "vertical" wall // h = shafthole_height, $fn = top_rounding_faces square(top_rounding_radius + pad, top_rounding_radius + pad); rotate_extrude(convexity = 5, $fn = top_rounding_faces); // Straight basic stem. Cylinder(h = stem_height + nothing, = stem_radius.

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