As far as I can see, there are no export options at all for the free version?
Also not a huge array of formats… Are custom export plugins supported in case I wanted to export directly to my own native format? For instance Ogre 3D graphics engine has its own native format with idiosyncrasies that make converting from 3DS tricky sometimes.
One reason I’d want to export is to do a nice animated fly/walk through… The built in walk/look camera options appear quite limited?
Make has Collada export that is considered quite versatile and is understood by most other modellers or file converters. The export plugins that I know of work with Make (for instance, the STL export plugin by the SketchUp developers).