Thanks for your responses -- the differences between polygon modeling vs. nurbs explains a lot.

Hi, I'm researching using SketchUp as the standard CAD tool for a new project where we will be creating many designs that will be manufactured from punched sheet metal. The fabrication house can accept native Solidworks models, STEP (ISO10303) or IGES file formats. Does anyone know if SU7 can export to one of these formats or if not are there converters available.

Any information is greatly appreciated.

Steven