I'm in the process of tearing down my 73Z project car, and decided to make all new brake and fuel lines now. To save some money and not have to piece several pieces together, I decided to buy 25" rolls of tubing. I wanted to start with straight tube so I looked in to buying a line straightening tool. Well they wanted $100 for one and that was more than I was willing to pay, so I made one. This will work on 3/16, 1/4 or 5/16. It cost me $15 to make. Attached is a picture of it. If there are others interested in making one of these, let me know. If there's enough interest, I'll write up detailed instructions on how to build one.
Paul (zbeemer)