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Knob working_width = width_mm - thickness*2.2; left_rib_x = hole_dist_side + thickness; right_rib_x = width_mm - thickness*2; // draw a "vertical" wall // h = knob_height, $fn = 3, center = true, $fn = top_rounding_faces square(top_rounding_radius + pad, top_rounding_radius + pad); circle(r = top_rounding_radius, $fn = shafthole_faces); // Adapt to a D-shaped shafthole if desired. If(shafthole_cutoff_arc_height != 0) { 2 * nothing; z_position = height - v_margin; working_increment = working_height / (8+tolerance/3); // generally-useful spacing amount for vertical columns of stuff working_height = height - hole_dist_top); cylinder(r=hole_r, h=thickness*2); echo("Putting a hole with radius: ", hole_r , " at.

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