Luckily, [Rupert] sent in a great tutorial on bending aluminum sheets for enclosures. To make his press brake ... [Rupert] picked up is scoring the sheet metal on the inside of a future bend.

The project came about simply because [Bob] needed to bend 42″ sections of flashing, and couldn’t find a decent deal on a sheet metal brake above 36″ wide. The build starts with some angle ...

In urethane forming, the inside radius is produced in a manner that in some respects resembles bottom bending. The urethane ...