HEX565 is a six legged pneumatic walker, also called a hexapod. Each leg has two pistons: one to lift and drop the leg, and the other to move the leg forward and back. HEX565 always has at least 5 feet on the ground at a time. It starts with all 6 feet back and on the ground. It then lifts...

This invetion is an electro-pneumatic adding/subtracting machine. It uses pneumatics to do the arithmetic, and electricity/motors to feed bits into the pneumatics, and touch sensors to read the results from the pneumatics. Why build a pneumatic adding machine when we can make the RCX do the math much more easily and a lot faster? Good question!...

After many overly complex failed efforts, I have made a pneumatic biped. The walking mechanism is completely automatic. Just apply air pressure. It can only walk forwards. No turning.

Dr. C. S. Soh the famous LEGO pneumatic engine enthuesiast threw down a friendly challenge that we need a pneumatic biped made from small pneumatic pistons. It took up the challenge and met the challenge after less that four hours of building time.

I was invited by Syngress to join a team to create a "LEGO Mindstorms Masters" book, where we got to build whatever creations we wanted without restrictions to a particular set. We got to describe the science behind the design of the robots in as much detail as we wanted.