[mickmate]

That manual bender you can buy as a bench top or on a stand is pretty slick for that kind of stuff too. Enco has a hell of a deal on them. You may need to modify a pipe die for tube on some machines also as you want a real good fit to stop the kinking Bob mentioned. I was about to try passing some lengths of tube through the rolls. I wouldn't hesitate with the square but the curvy bits are all tube!