Step 8: Step 8
Take the sheet metal and cut out a notch according to the photo and screw into the 1” header and ½” support pipes using 10 screws. Measure from the right 11 1/8 inches and to 12 7/8 inches. Mark these measurements. Measure 1 inch in as seen in the photo. Cut with sheet metal shears the two line. Bend the cut piece to 90 degrees.