Here's the robot arm at a university run back to school party in the library. The wrist was broken so I just tore it off and put a paintbrush. As usual, I left this for the 30 minutes before the party and the first 30 minutes of the party. No time for fine-tuning settings (counterweight, easel position, angle limits, etc) but it worked alright.
I've done a few of these robot painting things at science fairs. Since this one was for college age students and up, I felt safe handing the controls over. At kids science fairs I can't trust them not to poke out a few eyes, so it can be difficult to get any documentation of the event since I'm always busy with the controller.
