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AT-4 TB cannon help

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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AT-4 TB cannon help

Unread postAuthor: brogdenlaxmiddie » Sun Feb 17, 2008 7:25 pm

Hey, I built a TB cannon with a mod. sprinkler valve. Its an okay gun but it only shoots a TB about 75ft at 100 PSI. Its a 2.5" chamber and its about 1 1/3 feet long.... and this isn't good enough for me ( being that it only shoots 75 feet) I expected much more for the money i spent. So, how can i beef it up?

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Last edited by brogdenlaxmiddie on Sun Feb 17, 2008 9:51 pm, edited 11 times in total.

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Unread postAuthor: JDAX23 » Sun Feb 17, 2008 7:30 pm

two things how long is the barrel?
and the pictures arent working for me...
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Unread postAuthor: brogdenlaxmiddie » Sun Feb 17, 2008 7:33 pm

Yeah, I can't get the damn things to work. Anyone know how in the hell to do this? and the barrel is about 3.5'
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Unread postAuthor: sjog » Sun Feb 17, 2008 7:49 pm

Try a 1.5 barrel
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Unread postAuthor: brogdenlaxmiddie » Sun Feb 17, 2008 8:04 pm

Are yah sure? cuz once i cut it i can't easily put it back... lol
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Unread postAuthor: STHORNE » Sun Feb 17, 2008 8:05 pm

if you can (budget wise) make another barrel at least 5' long, that should increase your accuracy and distance a fare amount :thumbup:

EDIT: you should have put in a female adapter so you could interchange your barrels...you still can but would have to cut off your current barrel :?




oh, and jdax?? you see my tattoo design i drew for up for you? took me like 3 hrs lol, but it was fun :P
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Unread postAuthor: brogdenlaxmiddie » Sun Feb 17, 2008 8:12 pm

Yeah. Heres the prob. Its a basic gun thats gonna be put inside of an AT-4 style cover... so once i got everything to work, i was gonna just fill it w/ great stuff and make it really solid. But... the housing is 5' long itself. So what should i do within those perameters?
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Unread postAuthor: STHORNE » Sun Feb 17, 2008 8:19 pm

if i understand you correctly, this is what you should do:

modify it as much as you can (fit as much of the gun inside the structure as you can) and re-paint it all the same color so the external pvc matches the original color of the outside structure. :blob7:
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Last edited by STHORNE on Sun Feb 17, 2008 8:21 pm, edited 1 time in total.
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Unread postAuthor: brogdenlaxmiddie » Sun Feb 17, 2008 8:21 pm

thats what i was thinkin' :D
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Unread postAuthor: STHORNE » Sun Feb 17, 2008 8:24 pm

ok good, so could u post a pic of the structure/cover you are going to use and the actual gun itself so i can get an idea of how you could modify it? :dontknow:
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Unread postAuthor: pizlo » Sun Feb 17, 2008 9:05 pm

Well I think a sprinkler valve is a bit to small for TBs.
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Unread postAuthor: brogdenlaxmiddie » Sun Feb 17, 2008 9:10 pm

I tried to post some pics... but it didn't work... how would i do that?
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Unread postAuthor: STHORNE » Sun Feb 17, 2008 9:11 pm

a 1" sprinkler valve at 80+ psi should be fine for TBs

upload them onto the websight and then post
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Unread postAuthor: JDAX23 » Sun Feb 17, 2008 9:14 pm

oh, and jdax?? you see my tattoo design i drew for up for you? took me like 3 hrs lol, but it was fun


yes sir i did see it and i commented on it lol
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Unread postAuthor: brogdenlaxmiddie » Sun Feb 17, 2008 9:52 pm

OK, got the pics up :D
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