The arms were a pain. I was going to try some PVC magical leverwork like skeletronics but got too impatient and cheated with bowden cables. Delicious, delicious bowden cables. They're encased in some nifty looking blue conduit I found in the bushes behind the house. Must have a few hundred feet of the stuff, makes me wonder what my grandfather was doing with it.Dude.....every time I see your thread, something new!!! I love the mechanics you put in to the arms. Brilliant work. Your last vid it looks like the legs were rubbing together when you walked around. Problem?