This is my portable junk yard forge. The firepot is a brake rotor, the rim is a spacer from a truck, the deck is an old saw blade, and the legs are from a bed frame. The blower is a cheap bathroom exaust fan with a 3" air gate from a woodshop dust collecting system. It works quite well and gets plenty hot enough. I can't open the air gate more than 1/4 way or steel starts burning.