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// drop to axis [left_edge, -extra_depth], // bottom horizontal rib // h_wall(h=4, l=right_rib_x); // middle horizontal rib //} module make_surface(filename, h) { cylinder(r=hole_r, h=thickness*2); echo("Putting a hole with radius: ", hole_r , " at ", width_mm - 10 - center_adjust; // build up seven rows; middle one unused row_1 = bottom_row + v_margin + 12; row_1 = bottom_row + v_margin + 12; top_row = height - 25; // build up seven rows; middle one unused row_1 = bottom_row + v_margin + 12; row_2 = row_1 + v_margin + 12; row_2 = row_1 + v_margin + 12; row_1 = bottom_row + v_margin + 12; row_2 = row_1 + v_margin + 12; row_2 = working_increment*1 + out_row_1; out_row_7 = working_increment*6.

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