OK, so it's not done, but it's getting there. The mechanism is all working, now it's just a matter of putting a "skin" on it so it looks like it should. But I wanted to post a work-in-progress movie. Click the graphic to download and watch a 12MB WMV movie.
For those of you who don't play the Halo video game, it's a Scorpion battle tank. It has four treads and a revolving turret. Obviously the turret is just tacked on to give you an idea of how it will look when finished. But I'm pretty happy with the shape and function so far. I hope to have the full thing finished within a couple of weeks.
Oh yeah, should show you what it's supposed to look like: Halo Scorpion Tank.