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= stem_radius, r2 = stem_transition_radius, $fn = knob_faces); // Create a hole with radius: ", hole_r , " at ", width_mm - hole_dist_side - thickness; // draw panel, subtract holes // v_wall(h=4, l=height-rail_clearance*2-thickness); // top left [left_edge, 0], // drop to axis [left_edge, -extra_depth], // bottom right [right_edge, rotate_vector_sin * rail_depth] // top edge or circumference using cones or cylinders arranged in a circle. Used only where users want round outlines by specifying ≥30 faces.

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