Extreme Coaxial, now with stock!

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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noname
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I finally added a stock to the coax. Whenever someone shot it, the valve vented right on your ear, so I measured and added so now when I put the stock against my shoulder, my hand comes out right on the blowgun. It is now much quieter and easier to use.

Here is a pic of the busted diaphragm I talked about, along with all the other info for the launcher
http://www.spudfiles.com/forums/viewtopic.php?t=2146&
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CoaxwithStock4.jpg
CoaxwithStock3.jpg
CoaxwithStock2.jpg
CoaxwithStock1.jpg
BustedDiaphragm.jpg
BustedDiaphragm.jpg (1.11 KiB) Viewed 6265 times
PVC Arsenal 17
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where do you fill this gun up from?
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rna_duelers
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I like it,so how far does it shoot? And where is it filled up from?
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SpudStuff
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t is probably filled from the back of the gun.
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noname
First Sergeant 4
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There is a schrader tapped into the plug. I love my bike pump. :D
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x.X.Cpt.Rollhart.X.x
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The paint job is not very nice ... and the pink grip dont match with your gun ...

but the cannon must be powerful !
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noname
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Exactly. Why would I want to have the colors match? That takes all the fun out of it. And the paintjob is good, it's just an ugly color. :D

The C:B ratio is 9.5:1, yes, it's strong. I can shoot a paintball 820 fps.
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SpudStuff
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820 seems way to high. lets see a cronograph reading. did you measure that with a crono or did you use ggdt
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noname
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It was a chrono at a paintball field so I don't have pics sorry. I'm not lying though.
PVC Arsenal 17
Staff Sergeant 3
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I started making one of these the other day and I must say, it was real bitch trying to allign the two tees. They came out a smidgen crooked but oh well, it'll still shoot.
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noname
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I don't even use the front T anymore because of the stock. I couln't find any Ys so I just used Ts. Try gluing on a flat surface.
PVC Arsenal 17
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what is your diaphragm made of. Mine is most likely going to be fixed.
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noname
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Mine is just some 1/8" thick neoprene rubber.
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Velocity
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C:B ratio of 9.5:1??? Thats pretty high... if you had kept the barrel longer, your performance would have been increased.

Even with a 9.5:1 ratio, you got 820 fps? Im not trying to offend you or anything, but that sounds incredibly unrealistic.

Could you tell me the dimensions of your cannon? I dunno, 9.5:1 just seems off too me

nice coaxial though
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huse_spud
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give us some stats and we'll plug them in the GGDT and see if we get similar results.

820 fps sounds like a bit too much for such a short barrel.

what psi did u fire at? 200? :lol:
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