My daughter has a history project to do on the Ford Model T and the origins of the production line. Given that she and I had just been to the new Tesla factory, with its fully robot-driven production process, we though we could do a fun "then and now" comparison of car production lines in 1911 and 2011.
First step: create a working model of the Tesla production line robots. We took a cheap OWI remote control robot arm kit and hacked it for Arduino control, with full closed-loop feedback and scriptable paths, just like the real Kuka arms in the Tesla factory.
It was easy and worked great, so I've created an Instructibles tutorial so others can try it for themselves.