Although it is only on the drawing board, it is going to be oposite of all the others out there.Originally Posted by yosuthnmasa
It will be a universal flat plate (jig) that is drilled and tapped to hold the flat in place over an open pocket at the different points of bending. A solid ram will be pushed through the pocket to bend the flat. It will only need three pieces (plus fasteners). The plate, the ram and the hold down piece. Of course there will be various alignment pins and bolting.
Step 1) bend top rail #1
Step 2) bend bottom fold #1
reverse flat on plate.
Step 3) bend top rail #2
Step 4) bend bottom fold #2
Over simplified but that is the process. Each bend will require the alignment of the flat using correct alignment position and clamping down with the hold down plate. This would require loosening and tightening some hefty bolts.
If the hold down plate gets too complicated for the use of all four bends, I may have to make one for the top folds and one for the bottom folds.
Since only one bend is being performed at once, I believe that the process can be accomplished with a big hammer instead of a press, but a press would be the prefered method.