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my 1st pneumatic

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: spudthug » Tue Jun 19, 2007 7:23 pm

my chamber is a old welding tank that can take 600 psi easy


no comment.....
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4" piston valved cannon-half done..( i spilt my cement...)

Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
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Unread postAuthor: TwitchTheAussie » Tue Jun 19, 2007 7:42 pm

Keep up the good work mate. Ball valves are better than burst disks in my opinion, no need to replace it really. Nice work I'd put it on a stand and put her up to 300-500 psi and let it rip. Have fun mate :thumbright:
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Unread postAuthor: spud yeti » Wed Jun 20, 2007 9:04 am

Freak I dislike people who underestimate others because you new here!!
But thats beside the point... Nice cannon, I really like it and that was a decent idea with the welding tank. as everyone else says, if you want to improve it, look for valve options, but ball valves work fine!
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Unread postAuthor: potatoflinger » Thu Jun 21, 2007 8:19 pm

gjohng wrote:what is the black "bottle" that is holding the compresses air?

whats it called?

co2 tank?

thankyou in advance for any help :)

Try looking in the description :occasion9:
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Unread postAuthor: spud yeti » Fri Jun 22, 2007 10:39 am

Its an old welding tank (similar to a co2 tank i guess, because they both tanks....and hold stuff...)
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Unread postAuthor: unisonmind » Sat Jun 23, 2007 9:38 am

thanks for all the new posts on this old topic of mine this was my 1st cannon but i dont have it any more it became parts for other cannons as for the ball valve its the safety on this gunhttp://www.spudfiles.com/forums/my-new-cannon-t6178.html[/code]
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Unread postAuthor: turbohacker » Sun Jun 24, 2007 11:23 pm

Very nice!!
May I suggest a hybrid, it looks like it is totally set up for hybrid operation, all you need to do is change it to a burst disc and your set!!
With that tank you could take it to like5-6x mix, maybe acetylene + Oxygen
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If it walks like a dog, sratches like a dog, and barks like a dog, than its probobly a...-TURTLE, it's a TURTLE!!! Cant you see?!!!

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Thats a beast!
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Unread postAuthor: SnowFlox » Thu Aug 02, 2007 11:51 am

nice gun ! love the black matt color
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Unread postAuthor: pyrogeek » Wed Aug 08, 2007 2:01 pm

That tank may have been for nitrogen, or a nitrogen mix. Otherwise maybe oxygen. Do you have the valve, or any other info on the tank? Then we could better figure out what it held, and in turn how much it could handle pressure wise. But regardless, it is at least as strong as a CO2 bottle, and will obviously handle full pressure CO2. So I say, find a valve capable of 1000PSI, and some pipe, and get at it. If you could make a piston valve strong enough, you'd have a total beast.

I'm not a fan of a ball valve, but since it is a high pressure gun I'll let it go. Other than that, very nice.
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Unread postAuthor: The Engineer » Sat Sep 06, 2008 10:36 pm

i'm interested in where you acquired a welding tank like that.
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Unread postAuthor: frankrede » Sat Sep 06, 2008 10:59 pm

The Engineer wrote:i'm interested in where you acquired a welding tank like that.
Well that would obviously be from a welding supply store;)
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Unread postAuthor: The Engineer » Mon Sep 08, 2008 3:33 pm

well obviously so, but i haven't seen anything like that in the stores around here. its rather strange. i think it may just be that the city folk in the area don't do anything with their hands. they pay to have it done. its a waste.
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