Piston Valves Explained Visually

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SpudFiles Forum Index » Pneumatic Cannon Discussion » Piston Valves Explained Visually

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Piston Valves Explained Visually

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MrCrowley

Posted: 06/30/2008 23:30 PM Post subject:

Blizzard of Ozz
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Joined: 23 Jun 2006
Posts: 5912
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Wood, deodorant can, 1 1/4" coupler, hot glue...

I cover the former two in my how-to:
http://www.instructables.com/id/GolfballAntennaNerf-Cannon---Build-One -That-Shoo/

Because otherwise air will leak into the barrel as nothing is sealing the barrel. Because the chamber is getting sealed, air still can leak into the barrel. So by adding o-rings, the barrel is completely sealed off. Whereas in a barrel sealer, the barrel is already sealed so o-rings aren't required.

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