Lego Pneumatic Sk8r

I started out trying to build a biped pneumatic COG shifting walker using 2 pistons for the leg movement with the foot movement provided by ball joint linkages... it didn't work out so I put skates on the legs :)

Meet Sk8r, it runs off my 8 pump air compressor and travels 1 meter in 14 seconds.

Here is a movie clip of Sk8r in action (.wmv, 10 secs, 1.05mb)

Schematic for the pneumatic circuit.

This website has nothing to do with Lego Group or any of it's associated companies.
For more information about Lego Group and their wonderful products, please visit www.lego.com.