Rob, I have a homemade brake you can borrow or pop over and we'll bend it here. I made mine out of 3 x 2 beech and bought two 4" sturdy hinges off ebay.
There is a bit of an art to bending metal, there's a new video about this here -
https://www.youtube.com/watch?v=FyXpCPVOr8s which cover's some of the traps. TOT makes funny imformative video's.
Andy.