Many times I need to export sheet metal flat patterns referenced by the assembly to dxf for cutting or laser machine. I know I can program this in VBA (actually I did) or purchase it on Autodesk exchange apps from Micrographics , but I think it should be standard part of Inventor. This Micrographics application has also nice additional features - removing center marks, replacing splines with polylines or arcs (desperately needed for CNC control ) and more. It can be very useful. Also , it should make list of parts exported , with thickness and number of pieces for export to excel.