Pneumatic Lego Wheel
I recently encountered this by accident while doing research on perpetual motion machines. This has nothing to do with perpetual motion but is non-the-less interesting. It’s a pneumatically controlled Lego Wheel. using six pistons and six switches and of course lego parts.
Brings me back to my younger years as a kid. Except we never had motorized, pneumatic nor electric powered legos back then.
You can read up on how to build your own directly from the source here: http://www.philohome.com/pwheel/pwheel.htm
