3-way bend for a flexible material

Hello,

I'm having some issues trying to do a tricky bend. I'm trying to create a part that represents a piece of vinyl which has been bent/deformed around a few edges. The important thing here is that I need to be able to generate a flat pattern so that the future parts can be cut from that.

I've attached a photo showing how the vinyl is being bent, the trouble area is the angled section that is bent back with a triangle shape and then meets the wall. If I try to do each bend separately using sheet metal tools it ends up with messy cuts and a gap etc.

Does anyone have any suggestions that may be able to help?

SolidworksSheet Metal