[RotarySMP]

A guy Simco on an Australian woodworking site has posted a great set of plans, with photos how to build a 600mm finger brake for bending sheet metal.

http://www.woodworkforums.ubeaut.com...ad.php?t=45792

He has graciously donated this design to the online community.

As I have a sheet metal homebuilt aircraft project, I have been looking for a good design for a small brake, but until Simco's design, all the ones I had seen were either very primitive clamp an angle iron to bench type things, or Larry McFarlands very large, very tasty 8 ft brake, which I simply don't have space for.
http://www.macsmachine.com/

The thing I really like about Simco's design is that it has both set back and apron height adjustment, allowing you to control the bend radius, and it is a box brake, so you can remove and adjust the clamping fingers to make boxes and other complex shapes.

I have attached photos from the original forum, showing Simco's original brake, and one by a guys called Rod.