I was given this little machine:
http://www.cnczone.com/gallery/data/...ium/robot1.JPG
it is pneumatically operated with lots of electrically controlled valves and sensors. It even has a pressure sensor for the gripper.
There are some good sized slides on it so i'm thinking of stripping it for CNC-machine parts...what do you think?
http://www.cnczone.com/gallery/data/..._for_scale.JPG
The parts are all from PHDInc:
http://www.phdinc.com/products/default-menu.asp
/daniel