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To chamfer rather than round along the LEDs //outline of whole PCB cube([137.5, 97, 1], center=true); working_increment = working_height / (8+tolerance/5); // generally-useful spacing amount for vertical columns of stuff working_increment = working_height / 6; // generally-useful spacing amount for vertical columns of stuff col_left = h_margin; bottom_row = v_margin + 12; row_1 = vertical_space/7; row_2 = row_1 + v_margin + 12; top_row = 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.

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