Only downside to this cannon is that its extremely heavy..

I used a stun gun because I wanted an electric ignition so I could use the home made trigger on it that I constructed.

My air cannon is already finished and glued (properly) but there is a small leak between the air chamber and the coupler that connects it to the sprinkler valve. The coupler and chamber is 3". Is this not safe to be operating? I stay under 100psi. Is there a way to fix this leak?

Why not just leave the solenoid in with some teflon tape? I just did 5 mins ago, test fired my cannon, and no leaks!

Its ok Carlman, feel free to elaborate on my idea. I have to finish my golf ball gun before I can test out my rounds.

This is the reason I'm going to buy a smaller house and lots of land as soon as I can! So I can go nuts and host fourth of july parties and such.

I live in the suburbs now and have to load my cannons in my little 4 door to launch them somewhere.

Nobody else cares to comment on my cannon? Took me a while to build!

Haha, nice videos man. Where do you live?

Thats a really fine cannon you have there.. What are you using for propellant?

Well I mainly shoot at old computer monitors and electronics, so I havent had the chance to test these out.

I'm beginning the design stage for this golf ball launcher, and I will be completing that in a few weeks. THEN I will test!

Nothing much, but decided to post my idea here. I'm trying to get creative with the 800 golf balls that I have to shoot. Since these fit very well in 1.5" SDR-21 pipe, there is still a small amount of space left over. So I wrapped 1 layer of duct tape around 2 balls, then taped them together like th...

Well done, that looks real powerful. I would make a support like the others said to preserve its strength.

Very nice work, i would have named it the "Piece" Maker though. When you say that you shortened the barrel for optimum power, how long was it before? I am of the understanding that a bigger chamber will give MORE power, more noise and less efficiency. Here's what the chamber was going to be in the ...

carter wrote:looks sweet but dvw chamber? your sure thats safe. otherwise it's a nice gun

It's sleeved with pressure rated couplers.

I don't have a video camera!! In my post I said I'm not going to test it out until the weather gets better

My recently completed cannon features on board metered propane injection, stun gun ignition, chamber fan, and an over/under setup. Specs: -Chamber is 4" diameter and 15" long -Barrel is 1.5" x 60" long -Over/under design -12v intel CPU fan -Modified stun gun ignition -Separate control boxes for ign...