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Extreme Coaxial, now with stock!

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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Extreme Coaxial, now with stock!

Unread postAuthor: noname » Wed Jun 14, 2006 9:54 pm

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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Unread postAuthor: PVC Arsenal 17 » Thu Jun 29, 2006 4:54 pm

where do you fill this gun up from?
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Unread postAuthor: rna_duelers » Thu Jun 29, 2006 5:30 pm

I like it,so how far does it shoot? And where is it filled up from?
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Unread postAuthor: SpudStuff » Thu Jun 29, 2006 8:02 pm

t is probably filled from the back of the gun.
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Unread postAuthor: noname » Fri Jun 30, 2006 6:06 pm

There is a schrader tapped into the plug. I love my bike pump. :D
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Unread postAuthor: x.X.Cpt.Rollhart.X.x » Fri Jun 30, 2006 9:25 pm

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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Unread postAuthor: noname » Fri Jun 30, 2006 11:20 pm

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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Unread postAuthor: SpudStuff » Fri Jun 30, 2006 11:41 pm

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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Unread postAuthor: noname » Sat Jul 01, 2006 10:16 am

It was a chrono at a paintball field so I don't have pics sorry. I'm not lying though.
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Unread postAuthor: PVC Arsenal 17 » Wed Jul 05, 2006 7:55 pm

I started making one of these the other day and I must say, it was real [female doggy] trying to allign the two tees. They came out a smidgen crooked but oh well, it'll still shoot.
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Unread postAuthor: noname » Wed Jul 05, 2006 9:24 pm

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.
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Unread postAuthor: PVC Arsenal 17 » Thu Jul 06, 2006 9:54 am

what is your diaphragm made of. Mine is most likely going to be fixed.
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Unread postAuthor: noname » Thu Jul 06, 2006 9:56 am

Mine is just some 1/8" thick neoprene rubber.
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Unread postAuthor: Velocity » Sat Jul 15, 2006 2:18 pm

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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Unread postAuthor: huse_spud » Sat Jul 15, 2006 2:26 pm

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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