Does anyone know of a good FREE 3D PDF generator?  I'm not sure if a free one exists, but if anyone has used one, could you let me know where to find it. Thanks.

This one is free:http://www.cadforum.cz/cadforum_en/create-free-3d-pdf-output-from-any-cad-software-tip9972

I will send you a good software, if you give me your mail address. hehe