About this 3D model

UPDATE: The site has been moved to: http://nasa3d.arc.nasa.gov/ In honor of Space Month, and for those who may be waxing nostalgic about the last shuttle flight, I wanted to share a NASA website I found with free 3D model files of numerous spacecraft: http://www.nasa.gov/multimedia/3d_resources/models.html Several examples are attached. They are in 3ds format, which I was able to import to Google sketch, but I have not been able to export them to an stl file yet. If someone is able to do this, please post the procedure for us challenged newbies. Thank you.