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Top right [left_edge + height * rotate_vector_cos, rotate_vector_sin * height + rotate_vector_sin * height + rotate_vector_sin * height + rotate_vector_sin * rail_depth] // top horizontal rib // bottom horizontal rib // h_wall(h=4, l=right_rib_x); // middle horizontal rib h_wall(h=4, l=right_rib_x); } 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); } // draw a "vertical" wall.

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