Here's a few pics. I make among other things off-road bumpers.

Previous method of making bumpers included cutting every plate and welding the seams. Now I can bend at least some of the joints, making things easier on me, and the bumpers smoother.

The design is basically the same as the Northern Tools version, and there are people on ebay who make the same design.

I had the die springs and some of the steel, I think I'm out less than $40 for the whole thing.

Also pictured is a piece of 3/16" plate bent up.