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Rails v_wall(h=4, l=height-rail_clearance*2-thickness, th=thickness*1.25); v_wall(h=4, l=height-rail_clearance*2, th=right_rib_thickness); // top horizontal rib // bottom right [right_edge, rotate_vector_sin * height], // top left [left_edge, 0], // drop to axis [left_edge, -extra_depth], // bottom right [right_edge, rotate_vector_sin * height + rotate_vector_sin * height], // top horizontal rib h_wall(h=1.6, l=right_rib_x); // bottom horizontal rib h_wall(h=4, l=right_rib_x); // bottom horizontal rib h_wall(h=1.6, l=right_rib_x); // middle-bottom h rib // h_wall(h=4, l=right_rib_x); // middle horizontal rib // bottom horizontal rib // h_wall(h=1.6, l=right_rib_x); // middle-bottom h rib // h_wall(h=1.6, l=right_rib_x); // middle horizontal rib h_wall(h=4, l=right_rib_x); // middle-bottom h rib // one more vertical to mount a circuit board sideways on // h = shafthole_height.

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