> So, yes: proper conversion to a polygonal mesh with fine control matters a great deal. Sure, but the output conversion tools shouldn't be built around the re

> So, yes: proper conversion to a polygonal mesh with fine control matters a great deal. Sure, but the output conversion tools shouldn't be built around the render mesh. Any CAD tool worth it's salt should be able to take the best underlying representation of the model and give you an .stl with arbitrary precision. Every time I've ever exported a mesh from a NURBS modeller, I've gotten a dialog that lets you choose parameters. I'm not so experienced with standalone renderers (I usually only need the built-in ones), but the mesh that the CAD program uses to render should basically only be used for that purpose. Most programs shouldn't even give you access to it unless you open it up and look and the guts.