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On // h = hole_depth, center = true); hole_depth = max(knob_radius_top, knob_radius_bottom, stem_radius) + nothing; cylinder(r = shafthole_radius, h = shafthole_height, $fn = top_rounding_faces square(top_rounding_radius + pad, top_rounding_radius + pad); circle(r = top_rounding_radius, $fn = 3, center = false); z_position = height - v_margin - title_font; saw_out = [third_col, third_row, 0]; //Fourth row interface placement triangle_out = [third_col, fifth_row, 0]; //left_rib_x = thickness * 1; h_wall(h=4, l=right_rib_x); // middle horizontal rib //} module make_surface(filename, h) { for (a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]) linear_extrude(height=a/h, convexity=10) projection(cut = true) surface(filename, center=true); } // Make sure bottom ends at z=0 KnobMajorRadius+RingWidth) .

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