[CC69Rat]

I use the heavy wire you use to hang dropped ceilings. You can get a big roll of it at Home Depot for less than $10.

Shape the wire so it's really close to what you want your hard lines to look like. Its easy enough to make a new one if you mess up.. and once you get it like you want it, measure the templates and go buy your hard lines. Patience is key.. think twice before you commit to the bend, you'll be really surprised with your end results. Measure the 'flats' between your bends. I use what I call the short sides. I.E inside corner if the bend because thats where youre going to sit your bender to start the bend. make a mark, double check the angle and fire away