Try creating a datum plane, offset from a edge surface. Then create a bend, the plane will stay in it's original 3d space. In part modeling the plane would follow the surface of the offset and stay parallel. Is this a sheetmetal bug? Is there a config setting which controls the way the plane reacts?
This thread is inactive and closed by the PTC Community Management Team. If you would like to provide a reply and re-open this thread, please notify the moderator and reference the thread. You may also use "Start a topic" button to ask a new question. Please be sure to include what version of the PTC product you are using so another community member knowledgeable about your version may be able to assist.