I had a long list of sheet metal ER's and it really boiled down to a few issues. I'm wondering if there is support for the following proposed ERs to sheet metal design.
#1. All sheet metal cuts should have the option of being from the neutral plane (K plane) and normal to that surface.
#2. There should be a slot version of 3 way corners where the center circular cutout is the end of the slot. This would be made more useful of the "center hole" could be moved away from the typical circlular corner punch location to further down the slot towards the open bend of a 3 way corner. The slot width should be a seporate control from the hole size but the same by default. This would account for the typical problem of spring back for 3 way corners.
#3. the side angle of flanges should have a depth setting rather than only start at the fold line. The depth could be more or less than the flange size. This would also could be adjusted like #1.