most components of the chassis are either 3d printed or laser cut. the laser cut pieces could as easily be built with a 3d printer. the other components such as the motor, wheels, etc. are either from traxxas or hobbyking.
the design of the chassis was created in creo elements express 4.0 from ptc. it is an excellent tool for quick modifications on the design.
the following pictures show the partially assembled chassis:
here is a first video of the chassis in action:
further information can be found here: http://www.thingiverse.com/thing:382563