I just made this center die and rollers so that I can bend square 1" tubing with my Harbor Freight pipe bender. The die and rollers are not for making sharp or tight bends but rather to keep the tubing straight and true in the bender when I use it to put large diameter bends or long gentle curves into the tubing when I do body construction. However, I think with a couple of tweaks (like a larger diameter piece of tubing on the center die) this design could be adapted to making tighter bends. I'm going to see how this setup works and then try building some additional dies to see just how tight a bend I can create before kinking. There are more pictures and description of the fabrication in my Cboy-Two Journal http://www.hotrodders.com/forum/jou...nalid=53981#Making dies to bend square tubing
Typical HF Bender
Original Die and Rollers - made only for round stock - won't keep square stock straight in the bender
My Fabricated Center Die for 1X stock
My Fabricated Top Rollers for 1x stock
New Die and Rollers in the Bender
Typical HF Bender
Original Die and Rollers - made only for round stock - won't keep square stock straight in the bender
My Fabricated Center Die for 1X stock
My Fabricated Top Rollers for 1x stock
New Die and Rollers in the Bender