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+1 There are some truly epic water rocket designs on this site, such as the ones by oscarthompson.
Arduino-Pneumatic Flight Simulator
** Failed: Compact Lego Air Tank (Prototype 1)
Pneumatic Rocket Launcher
pneumatic sniper rifle
Fully Portable, Homemade, Airsoft Gun
Easy Pneumatic Piston from a Bicycle Pump
Proof Of Concept Valveless Air Canon
Easy PVC Pistons + Simple Airgun
3D-Printed Biologically-Inspired Robotics
Posted:Jan 26, 2010
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