This is exactly what we wanted because it doesn't have all the adapters to go from the sprinkler valve to the muzzle and pressure chamber. Is it the size sprinkler valve you are using?
http://www.spudfiles.com/forums/files/img_6413_463.jpg

and yes, we are firing it into a crowd. we hope to get ...

will larger pneumatic hose still restrict airflow. if so we have another design that may replace our last. link http://toolmonger.com/wp-content/upload ... cannon.jpg

I am in an engineering class and we tap holes all the time. The problem was that we didnt have a tap large enough and not that we didnt know how to do it... we might consider using the threads from the adapter, now knowing that we can do it. I will also try to convince my teacher to use solid ...

Are there any ways of doing this without having to drill the PVC. we dont want to compromise the structural integrity of the PVC. we are considering using a female adapter. Is this a good choice and if so how could we secure it to the barrel.

This is true and will be taken into consideration. however, no matter what we use to supply air to the barrel, we dont know how to connect it to the barrel. We kind of figured that by loading our ammo (in this case t-shirts) close to the end of the barrel and by packing it tightly, pressure would ...

We have a surplus of flexible tubes
link to the connection we are using . . . top left and center left
http://www.global-b2b-network.com/direc ... hread_.jpg

Hello. I am part of a school project to build a pneumatic t-shirt launcher. We've been doing research on it for several weeks and have begun the building process. So far we have a 2 1/2 inch PVC barrel, at about two and a half feet long. However we have run into a problem. Once we get a cap for our ...