I built up a gas tank skid plate yesterday for the Commando project and needed to make some long 90 degree bends. My dad's sheet metal brake was too wimpy to bend 1/8 inch so I put a rosebud on the torch and tried to heat and bend it with the torch and some angle iron. However there was no way to keep a long section hot enough to bend and the first bend came out pathetic. So I came up with what I call "bending on the dotted line". I marked the line I wanted to bend then clamped a piece of angle iron near the line then busted out the plasma cutter. Instead of cutting the whole length of the plate I alternated a pattern of cut for an inch skip an inch cut a inch , skip an inch. When I was done it was easy to bend it. Then I welded up the cuts and sanded them off. Maybe some of you already new this trick but it worked great for me.