first pneumatic cannon

[brad1780]

this is my first attempt at a pneumatic cannon. it has a 1" sch 40 by 4 foot long barrel. it uses a 1" lawn genie sprinkler valve with a 2" sch 40 by 2 foot chamber. Besides the out of control primer which will be painted shortly, give me your opinions.
thanks







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[ShowNoMercy]

Please, please tell me you didn't hot glue your accessories in? Other than that nice job.

[SpudUke5]

Very nice

what is the pop off valve rated too (as in when it opens)?

[elitesniper]

hot glue?? , nice cannon anywhoo, good way to start off.

[brad1780]

i had some VERY MINOR leaks after i screwed the pop off valve in so i just put a little hot glue on there to try to seal it up a bit. worked pretty well. the valve is set at 115 psi.

[ShowNoMercy]

You should invest in some epoxy, I think it will work better for this purpose. Even some thread sealant.

[brad1780]

i just glued it yesterday to get a few test fires in. i plan to fix things with epoxy when i get a chance toworrow.

[pizlo]

Quite a bit better than my first, which has not been posted here out of embarrassment.

[potatoflinger]

That's pretty nice, I'll bet it has a decent amount of power. What color are you going to paint it?

[brad1780]

i think i am going to paint just flat black. it is pretty powerful. i put a C battery through a fence board from about 45 feet at 60 psi.

[bigbob12345]

Very similar to a gun I posted on here recently the chamber is just a little smallerhttp://www.spudfiles.com/forums/my-most-recent ... 12468.html
Good job all together but get some epoxy

[psycix]

Very similar to a gun I posted on here recently the chamber is just a little smallerhttp://www.spudfiles.com/forums/my-most-recent ... 12468.html
Good job all together but get some epoxy

When I click your link my browser tells me it cant open "smallerhttp://"
Fixed link:
http://www.spudfiles.com/forums/my-most ... 12468.html