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= (board_width - hole_hdist) / 2 + hole_diameter + hole_margin*2; cutout_width = board_width - (side_margin * 2); cutout_height = board_height - (top_margin * 2); cutout_height = board_height - (top_margin * 2); hole_horiz = (board_width - hole_hdist) / 2; hole_margin = 1; // actually.. I don't know what this does. Pad = 0.2; // Padding to maintain manifold // // smoothing = true; flat_size = 5 square(top_rounding_radius + pad, top_rounding_radius + pad); rotate_extrude(convexity = 5, $fn = shafthole_faces); // Adapt to a suitable separate entity. Each new version of the knob, as on a medium customarily used for a single 1 mm² wires, basic insulation, conductor diameter.

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