Programs for creating 3D models of robots before building them?

[obiwanjacobi]

Why not prototype with cardboard or some other cheap and easy material. I think it much more time/money efficient than trying to create models in expensive software...

[2c]

[Franke]

Here's another link for CAD files for Robotis Bioloid servos and frame parts for Solid Works.

http://humanoids.dem.ist.utl.pt/Iden_external/overview.html

Near the top of the page there is a "click here" link to a rar file that contains all of the pieces.