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// middle-bottom h rib // h_wall(h=1.6, l=right_rib_x); // bottom right [right_edge, rotate_vector_sin * rail_depth] // top horizontal rib h_wall(h=4, l=right_rib_x); // middle horizontal rib h_wall(h=4, l=right_rib_x); // middle horizontal rib // h_wall(h=1.6, l=right_rib_x); // bottom right [right_edge, rotate_vector_sin * height + rotate_vector_sin * rail_depth] // top left [left_edge, 0], // drop to axis [left_edge, -extra_depth], // bottom horizontal rib // bottom horizontal rib // h_wall(h=1.6, l=right_rib_x); // bottom right [right_edge, rotate_vector_sin * height + rotate_vector_sin * height], // top horizontal rib // h_wall(h=4, l=right_rib_x); // middle horizontal rib // one more to mount the circuit board sideways on // h = z height, i.e. How tall the wall is coming out of the rail + a safety margin // margins from edges h_margin = thickness*2; v_margin = hole_dist_top*2 + thickness; v_margin = hole_dist_top*2.

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