Years ago, while in middle school I noticed one of these robot arms in my technology class in junior high. It looked very cool, but I spent all of my time on Lego Logo projects. Fast forward to recently where I found one of these old arms on EBay. I was lucky enough to have the winning bid. The lot only contained the arm (no power supply, interface cables, manual, etc). Soon after that I found the training manual for the arm at an online used book store. Fortunately, this book contains the schematic and all sorts of technical details about the arm.
- Hook up an old ATX power supply to the arm (the arm requires +5V and +12V)
- Start figuring out the parallel port protocol. Will try using an Arduino. If that doesn't work, will grab a USB parallel port adapter.