I read an interesting instructable about a metal bender and then I saw the most interesting photo of a theatrical workshop tool. I formulated an idea and it quickly turned into a new tool.
WeldingWeb™ - Welding forum for pros and enthusiasts
Inexpensive Soft Metal Bending Tool - All
Harbor Freight metal bender/scroll - YouTube
Follow this guide to build your own tubing bender stand for our bender or yours.
square tube bender, cost less than 25 dollars
Pipe bender diy plans - Google Search
150mm Sheet Metal Bender More
Metal bender on instructables