etch-a-sketch, stepper motors, stepper motor drivers, PC with parallel printer port, Basic, custom printer cable, electronics, gears and belts
This was a learning exercise to familiarize myself with stepper motors and prepare myself for building the Ice Carving Robot for the Art Shanty Projects.
I built this myself from scratch. I learned how to control the stepper motors with the PC from my friend Bruce. I helped him teach a group of kids how to do this stuff and I think I learned more than the students did. Bruce has all the info you need to make your own on his From Bits to Bytes to Bots web site.
And don't forget to check out the rest of Bruce's site.