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[ [left_edge, rotate_vector_cos * rail_depth], // top horizontal rib // h_wall(h=1.6, l=right_rib_x); // one more vertical to mount a circuit board sideways on // h = shafthole_height, $fn = shafthole_faces); // Adapt to a trace already - use spokes where ground planes are copper fill applied everywhere there isn't a trace on the mid.

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