FrameBot is a scaled up version of a small crawler I called TheThing but this one gets transported to the show by being towed behind a car .If I can raise the $4K I need for the engine ,pump ,valves ,cylinders ,hoses and fittings I'm considering building it for the Austin First Night Parade .It will run on a small gas engine powered pump running a set of hydrolic cylinders ..I have most all the steel and the frame is already built (The old B3 frame)so this is mostly done.
Here are some cad drawings .

http://www.robotgroup.net/brooks/FrameBotB3c.jpg

http://www.robotgroup.net/brooks/FrameBotB3Eb.jpg

The blue beam alternates which leg is up or down ,the green pivot point is the stride and the red leg segments are the side stepping movements .