So I have been designing some multi-body sheet metal cabinets that will be welded together in our shop. Now i want to make a pretty 45° miter cut where the side plates and their myriad of flanges meet the top section and its subsequent flanges. I run into the issue of not being able to flatten the part because the cut is partially intersecting a bend (I think that's the reason it doesn't work). I have attached the model here and would love some input as to what i can do to make this work.
I start by creating the two pieces as full length / width parts with the end flanges for the door lips overlapping / intersecting. Then I create 2 separate cuts and select my bodies independently. (one cut for each side of the joint).
Any help would be appreciated.