Here's the marks I was talking about.....
When I'm saying "right" or "left" of center (the 90* mark is LEFT of center) -- thats the OUTSIDE of the tube is either to the right or left of the center of the tube that is being bent... so imagine a center line down the middle of the tube -- is the center of where you're trying to go measured to the outside of the tube to the left or right of it? So let's say you're running alongside the frame - and you have a crossmember you have to make a right hand 90* bend and you want the tube to be right up alongside that crossmember... then measure to the crossmember -- lets call it 15" -- make your mark -- then set the tube up to the "R" and that will put the right side of the tube at exactly the 15"..... So simple a caveman can do it.
And you can see the 5/8" radius stamped clearly on the die... Good benders should have this info on them. Who can remember it -- I can't - and each one is different -- because my 1/2" tube bender is 1 1/2" radius....
