Coaxial. 'nuff said. Warning: High resolution pics

[Intel Xeon]

This is my first coaxial. I made it, reduced the chamber size twice, extended the barrel once, and replaced half of the union. The forward bushing is messed up, yes, I know. It will be replaced.

Total Length: 5'5" or so.
Chamber: About 2' of 1 1/2"
Barrel: 4 1/2' of 1/2
Valve: Diaphragm housed in a 1 1/2" union
Diaphragm: 1/8" gasket sheet
Exhaust: 1/2 Ball Valve


Pic 1
The Cannon

Pic 2
The valve setup

Pic 3
My ingenious barrel center-er

[turbohacker]

This is a Co-Axial?
It looks much more like a diaphram gun from the side. Nevertheless it is a very nice gun. You dont see many diaphram guns.

It needs a great paintjob and maybe a handle and it'll be ready to rob a bank

[FeLeX]

Hey Nice man. I am building a gun just like that. What did you use for a diaphragm?

[MrCrowley]

This is a Co-Axial?
It looks much more like a diaphram gun from the side. Nevertheless it is a very nice gun. You dont see many diaphram guns.

It needs a great paintjob and maybe a handle and it'll be ready to rob a bank

A co-axial can use a diaphragm valve.

Nice gun btw.

[Intel Xeon]

For the diaphragm, look in the post. Thank you for the compliments.

[noname]

Why the union? It's just another $10 and it's unnecessary. Cool gun though.

[Intel Xeon]

What? the union was like USD$2.50 at lowes. I'm wondering where people are getting this $10 crap

[frankrede]

It doesn't even cost 10$ for a 2" sch 80 at my lowes
Nice coax
Whats the pvc after the ball valve exhaust for?

@Turbohacker
How long have you been here?Come on all of your posts I see are usually of wrong information.

[spud yeti]

Why the union? It's just another $10 and it's unnecessary. Cool gun though

The union holds the diaphram in place and seals it, so how can it be unnecessary!

This is a Co-Axial?

As MrCrowley said, it can have a diaphram or piston. As far as my knowledge tells me, a co axial just means the barrel is housed in the chamber.
Very Nice cannon though, well done.

[Intel Xeon]

Plus, the union lets me "Breech Load". Just unscrew the back and shove your projectile in the barrel.

[spud yeti]

Good point, never thought of that. How fast can you reload it then?

[Intel Xeon]

Takes maybe 7 seconds. It is needed because I don't have anything slim and long enough to muzzle load a 1/2" barrel

[spud yeti]

OK, thats pretty flipping good! And muzzle loading a 5ft gets old fast What do you use as a projectile for it?

[hi]

that looks slightly familiar, i wonder where ive seen it....

anway, nice job on it.

and by the way, i used a union on mine because the only diaphragm i had was too thin and would have been simply sucked into the barrel.

[Intel Xeon]

yes, my valve was inspired by yours. I just used a different exhaust, size, and diaphragm.