pneumatic potato gun i made

[Schnabel]

One precaution I will give you is that we have been building many air cannons over the years and every time we used pvc because of the cost for supplies and every time we got screwed over. Basically you have to treat it like glass because it will crack slowly with the pressure built up inside and will being put down to the point that it can't be used anymore. You may want to consider using something else.

Originally Posted by Tytus Gerrish

90psi is nothing for a hand held gun i typically use co2 at about 850Psi. even with compressed air i go up around 250psi.

Just remember, the TechnoKats built a cannon this year and we can shoot into the crowd ~70+ ft. away at 50 psi.