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Smoothing = true; arrow_scale_shaft = 1.5; // // smoothing = true; flat_size = 5 square(top_rounding_radius + pad, top_rounding_radius + pad); rotate_extrude(convexity = 5, $fn = top_rounding_faces square(top_rounding_radius + pad, top_rounding_radius + pad); rotate_extrude(convexity = 5, $fn = stem_faces); // Widening part.

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