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(side_margin * 2); hole_horiz = (board_width - hole_hdist) / 2 + hole_diameter + hole_margin*2; side_margin = (board_width - hole_hdist) / 2; hole_margin = 1; // actually.. I don't know what this does. Pad = 0.2; // Padding to maintain manifold rotate_extrude(convexity = 5, $fn = top_rounding_faces square(top_rounding_radius + pad, top_rounding_radius + pad); rotate_extrude(convexity = 5, $fn = smooth // outer pointy indicator // cube size of circle fragments in mm. Quality == "rendering") ? 0.25 : quality == "rendering") ? 3 : quality == "rendering") ? 3 .

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