*edited to remove external references -- example part is attached*
I have a tube that has been cut using features defined in an assembly. I have made a thin shell, but I need to convert this part to sheet metal in order to flatten it and create a pattern to wrap the pipe with for cutting.
I have done this before by starting with a lofted bend, then making the cuts and unfolding the bend. However, I have already defined the parts as solids. I'm sure there is a simple way to convert this thin shell to sheet metal, but I'm evidently missing something.