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Holes // v_wall(h=4, l=height-rail_clearance*2-thickness); // top horizontal rib // bottom 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); } // Something Positive if (!$alt_text){ Added BCN, Something Positive From e89a2a057de6d0325362ec61c1fe0ab24a803b20 Mon Sep.

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