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Airsoft "Rifle"

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: iPaintball » Fri Jul 27, 2007 8:49 pm

Is the barrel sleeved in something else? The barrel looks silver... What do you mean by "...after I mailed it..."?
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Summer Projects:
CO2 tank hybrid: Gotta fix the meter :(
Cane gun: Needs a pilot/fill setup
1.5" piston valve gun: Almost done
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Unread postAuthor: rednecktatertosser » Fri Jul 27, 2007 9:58 pm

by 'after he mailed it' he means after he mailed me some of the 9/32" brass brakeline. because no harware or auto stores near me carry it.
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Unread postAuthor: iPaintball » Fri Jul 27, 2007 10:02 pm

Dude, He did that for you? I need some really badly... How much did it cost? noname's a cool guy. The vortex block he sent me rocked.
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Summer Projects:
CO2 tank hybrid: Gotta fix the meter :(
Cane gun: Needs a pilot/fill setup
1.5" piston valve gun: Almost done
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Unread postAuthor: noname » Fri Jul 27, 2007 11:52 pm

I had it lying around, he wanted it, so I mailed it to him (not for free). Then I realized I needed it. It's $5 for the brakeline, $2 for shipping, and $4 for a mailing tube, unless you want me to make one (you should post pics of the tube, Redneck).
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Unread postAuthor: iPaintball » Sat Jul 28, 2007 12:23 am

Where can you buy it?
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Summer Projects:
CO2 tank hybrid: Gotta fix the meter :(
Cane gun: Needs a pilot/fill setup
1.5" piston valve gun: Almost done
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Unread postAuthor: spud yeti » Sat Jul 28, 2007 2:05 am

Beautiful. I love this gun almost as much as my love for women, cars, and... uh, not much else beats it :wink:
You astound me with your rifle. Well done.
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really good quote/phrase here
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Unread postAuthor: dauphinoise potato » Sat Jul 28, 2007 3:28 am

That is areally nice rifle well done, damage pics?
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Unread postAuthor: Redcoat » Sat Jul 28, 2007 5:12 am

nice gun.I'd like to see some damage pics at that kinda velocity :twisted:
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Poo.
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Unread postAuthor: noname » Sat Jul 28, 2007 11:21 am

It's been dissassembled. It lived for about 8 hours.
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Unread postAuthor: spudthug » Sat Jul 28, 2007 12:00 pm

wow nice gun..why did you tear it apart...
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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: mopherman » Sat Jul 28, 2007 1:52 pm

would you recomend a piston or diaphram valve for a bbgun? i think the phram would actuate better
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Unread postAuthor: VH_man » Sat Jul 28, 2007 3:13 pm

id reccomend a diaphram. diaphrams open faster but give less flow.

however, a 5 foot long tube with a 6.04mm ID isnt going to have much flow either.........

for cannons with barrels under 3/4 inch, i always use a phram. the extra flow gained isnt worth it.
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Unread postAuthor: mopherman » Sat Jul 28, 2007 3:16 pm

VH_man wrote:id reccomend a diaphram. diaphrams open faster but give less flow.

however, a 5 foot long tube with a 6.04mm ID isnt going to have much flow either.........

for cannons with barrels under 3/4 inch, i always use a phram. the extra flow gained isnt worth it.

yeah. my only concern is that it wont flex enough in a 3/4-1/4 reducer.
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Unread postAuthor: noname » Sat Jul 28, 2007 3:52 pm

How are you going to find rubber that's flexible enough for a 1/2" chamber, but can also hold 400 psi? Maybe you can, but I didn't want to waste time and money trying.
A well made diaphragm valve gives about 90% of the flow that a piston does, and opens more than twice as fast using the same pilot valve. They are also much easier to make. I use them in pretty much any barrel sealer. I've only made 2 or 3 pistons, compared to around 10 diaphragms.
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Unread postAuthor: mopherman » Sat Jul 28, 2007 4:01 pm

well the reason i was going to go for the 'phram is that i wanted to use a blowgun to actuate it. but you seem to be able to to it, so I may try a piston.
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