Oh, I'm still around. Still working with search and rescue robots, although we gave up on the slip ring. (Actually, we DID make a successful, homemade slip ring that worked for 10BaseT, using copper solder wick sliding over copper rings as contacts. Used ProGold as a lubricant/contact...
I'm working with an amazing group of high school students on robotics projects. Currently developing a teleoperated search and rescue robot for RoboCup in Japan. We've chosen to avoid wireless (too much interference). We're designing an inexpensive 10BaseT ethernet cable reel for placement on...