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Metal coax

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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Metal coax

Unread postAuthor: elitesniper » Sun Mar 30, 2008 10:07 pm

Well, here you go should be self explanatory, 3/4 galvanized steel chamber 1/4 exhaust airsoft barrel, operating pressures 200-300psi, black iron tee.Hope you likey UPDATED, some how this reminds me of the famas.
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Attachments
metal.JPG
123456yu.JPG
asdf.JPG
damagegun.JPG
using compressor pressue, not propane about 100psi? er 90 not sure 12g bb lots of blowby in the barrel but still manages
paintpaint.JPG
80psi nail+paintcan.
123456789.JPG
erty.JPG
famas.JPG
famasss.JPG
Last edited by elitesniper on Sat Apr 12, 2008 11:06 pm, edited 3 times in total.
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Unread postAuthor: Davidvaini » Sun Mar 30, 2008 10:24 pm

decent coax, now all it needs is a paint job and maybe some accessories...
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Unread postAuthor: Gippeto » Sun Mar 30, 2008 11:48 pm

Looks good. Let's see the damage pics!

Dress up is for little girls and the orange county chopper guys! :lol:
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Unread postAuthor: MrCrowley » Sun Mar 30, 2008 11:52 pm

I do likey, how's the pilot volume?
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Unread postAuthor: bigbob12345 » Mon Mar 31, 2008 12:04 am

Wow there has been a lot of these posted lately

anyways very nice job
Pretty much my one but out of metal :)
and what are you using to pressurize it to 300psi?
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Unread postAuthor: elitesniper » Mon Mar 31, 2008 11:36 am

Pilot volume is almost nothing. There is some 1/2 sch80 pvc sleeved inside for the piston, and in the tee there is some 1/4 inch cpvc with some rubber to act as a bumper.
Bigbob I am using propane to pressurize it then I top it off with a shock pump :D ill be painting it black later, will any of the parts rust? If it does thats the reson im painting.
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Unread postAuthor: Brian the brain » Mon Mar 31, 2008 11:42 am

Nice..You could switch the ballvalve and schrader,
Makes for a more comfortable trigger.

How does it perform??
Could you test it on a steel can?
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: bigbob12345 » Mon Mar 31, 2008 11:44 am

Propane
that is a good idea and i will try it

and no, the parts wont rust for a very long time. They might start to rust a little in a year or so and the only parts that would rust at all are the black fittings.
that is all assuming you keep it dry
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Unread postAuthor: Counterstriker » Mon Mar 31, 2008 12:03 pm

Nice man, Looks like mine! Btw can you post in there so I don't have to double post :D
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Unread postAuthor: elitesniper » Mon Mar 31, 2008 6:20 pm

thanks guys, Ive painted the iron so it wont rust, but metal fittings should last a looong time right?
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Unread postAuthor: Counterstriker » Mon Mar 31, 2008 6:36 pm

What material was the piston made out of? Hi-5 on the epoxied barrel :D
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Last edited by Counterstriker on Mon Mar 31, 2008 6:37 pm, edited 1 time in total.
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Unread postAuthor: elitesniper » Mon Mar 31, 2008 6:37 pm

Piston was made out of aluminum rod. :D
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Unread postAuthor: Counterstriker » Mon Mar 31, 2008 6:39 pm

Oh, Nice! So did you use a barrel support? I like how you put the quick disconnect and the shrader... I might do that :D
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Unread postAuthor: elitesniper » Mon Mar 31, 2008 6:41 pm

Yea i used a barrel support because when i fill the piston shoots forward really fast. dam this thing is strong you shoul really bump up the pressures on yours to see true damge :)
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Unread postAuthor: Counterstriker » Mon Mar 31, 2008 7:11 pm

elitesniper wrote:Yea i used a barrel support because when i fill the piston shoots forward really fast. dam this thing is strong you shoul really bump up the pressures on yours to see true damge :)


I want to, Just this darn bike pump...I might make a high pressure pump.. I am not really sure how much that project will cost. But for now the pump will have to do.. I can take it up to 80 but I pulled my shoulder a few days ago... Any damage shots?
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