Chris writes -
This project is a robotic arm made mostly from Wood. It cost less than $50 to make and has alot of the functionality that any normal robotic arm would have. It is controlled by a PIC MicroController and cloned PS1 controller.
The Wooden menace – Robotic arm – Link.
Nice bit of work. I notice that the arm flops around when it rotates on the base. This could be fixed cheaply with a lazy susan bearing from Home Depot.