A friend of mine came up with this clamp design. I modified th
e original design and it works like a charm. 5 or 6" C clamp welded to a piece of 3/16ths plate. A large washer is welded to the clamp swivel. 2 pieces of mild steel are welded to the plate to support the sanding base. The sanding base is 1 1/4" x 10" piece of wood covered with 8 oz. leather.