The Biggest Part of the tube bender was the modular bender die.  The reason I designed this was that the price for round tube benders was way to much for my budget. I used my skills as a Sheetmetal origami master to make bender die that was a tenth of the cost and had more functionality than a normal die. By removing the profile fins and cutting new ones I have the ability of bending multiple types of profiles in to not only round tubing but square tubing. With the only need being that 18 new fins had to be cut and placed in the die.  I do have plans to try and make a 3d printed die that would remove the scratching that is caused by the metal fins.