After months of wanting to, and pondering how, I added a sonic screwdriver to where a CPU interface arm would normally go. :)
R2 got invited to a wedding with some 501st guys.
There was a disastrous fall. A face-plant into the sidewalk before the wedding started. Thank you sidewalk crack, and thank you pretty woman R2 decided to try and follow!
I was able to patch together everything that broke during the ceremony and had him dancing with just a few scratches.
The wedding people were great. The bride and groom were not only Star Wars fans, but Doctor Who as well. Coincidentally, I had just figured out the Arduino code necessary to make this thing work, at 3:00 AM the morning of. So I was fooling around letting R2 threaten to "Exterminate" some kids, and then some sounds. The bride perked up and said, "Why do I hear the TARDIS?!" Hearing that, I got into the panels and re-enabled the servos for the arm and door. I still have a huge problem with the pittman motor activity causing the servos to go bat-crap crazy. Hopefully a filter capacitor will help, but I'm not sure what else to try.
Video of it working:
