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.

DIY Sheet Metal Bender Machine - Making Metal Rolling ... To do this, I spotted the best bending machines' manufacturer, it turned out to be Swebend. I am very grateful to the whole Swebend ...