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9.5/2 - right_rib_thickness - tolerance; // left_rib_x = thickness + 6 + tolerance; rotate_vector_cos = 0.94; // 'x' of 20 degree rotation rotate_vector_sin = 0.34; // 'y' of rotation left_edge = -rotate_vector_sin * rail_depth; right_edge = height * rotate_vector_cos; points = [ [left_edge, rotate_vector_cos * rail_depth], // top right [left_edge + height * rotate_vector_cos, rotate_vector_sin * height], // top horizontal rib // h_wall(h=4, l=right_rib_x); // middle horizontal rib h_wall(h=1.6, l=right_rib_x); // one more vertical to mount a circuit board to, dead center // one more vertical to mount a circuit board to.

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