ArtMetal

Further to the mangle derived slip rolls posted in reply to Curtis' question, You can make a good ring roller using a heavy duty castor with polyurethane tyre as the driving wheel. It grips whatever you put through it and forces it over the idler rollers below. For gentle curves like bow topped gates, it'll handle up to 3/8 X 2". I would like to make something for rolling flat bar on edge, though. Anyone tried that ? An old tyre bender would do well, but they're getting rare and expensive. ( Damn I'm mean )