Just a few hours ago I discovered a free 3D polygonal modeller prog called Rocket 3F and have been looking through the menus and such. Don't know if other EP members know about it, but it was new to me. This is the opening screen when you first run it. Seems fairly comprehensive but don't know yet how many file types it supports. Will post more pics up when I've done more with it. Rocket 3F site.