STEP EIGHT:
Weld the 1-1/2" flat stock with the 1/2" holes (from steps 2 and 3) to the mounting plate. One piece should be placed 1-3/4" from one end and the other piece should be welded 1-1/4" from the other end. Weld just the insides of both pieces, setting the Auto-Set to 1/8" on the Multimatic 220 AC/DC, and let it cool before removing clamps to minimize warping.