Air Cannon





Introduction: Air Cannon

This is an air cannon that I built this summer to shoot mini tennis balls to my dogs. Of course I also shoot other things like potatoes, tomatoes, apples, etc. Hope that you enjoy the slide show.



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      Danger: See link: This is not spam, but a warning. PVC will fail suddenly after a while. This was band member that hurt badly by a T-Shirt launcher explosion.

      See the pictures and never use PVC to hold air, Please.

      Interesting gun, though if you build another, give it a better design so it is easier to hold, carry, and then shoot. My firsdt air gun had no stock, my second had too big of a stock, and my last gunI built is sooo freaking huge, I put my arm through the stock so I can get some support. So just keep in ming, any gun design that is preferably compact, small, easy to wield, and shoots well is great. Nice gun for a first though ;-)

      18 replies

      Thanks for the tips. It is a bit hard to carry, but I had built smaller hand held cannon that was that had a large handle to hold onto. On this cannon I wanted to make the tank directly behind the valve for best air flow, so I made a tee shape which was one of the most compact designs possible.

      I just finished version 5 Air rifle, and is is mostly S shaped. the top of the s is extended into a barrel, the middle of the S has a trigger, and the bottom of the S has a 2 wide chamber. That is how mine is compast ;-)

      That sounds like an awesome cannon. You should post a slideshow of it.

      One problem: The tests I've done so far let it only shoot 20 ft at 30 psi :( My other gun goes like 100 ft at 30 psi... I might need to do some more tests.

      What are you shooting out of it, and what kind of valve are you using

      Um... a tight wad of aluminum foil works well, but not in my compact gun... They both have the same trigger, a modded sprinkler valve.

      Can you point to a source for a piston valve?

      Hmm... It sounds like a great cannon that should shoot more than 20ft. at 30psi PS The Aluminum foil sounds like a great projectile to try.

      Oh haha... I know this is an old post, but I found out that only half of one of the end caps was glued on. I applied glue all the way around, and it works fine.

      Cool, now are you talking about your version 5 air rifle?

      I think so. The compact version.

      Should I like try a video? or slideshow?

      Yeah, that would be great. I really want to see what it looks like.

      Sorry, Currently working on an 'ible :D Remind me after I post it :P

      I tested it and what works great is 2 90 degree elbows next to the tee