Co2 canon

[kid rok]

Specs for gun build up.
Biggest ball valve you can find 2" on mine
Build gas chamber out of same size pipe ,size is a little factor, you need enough gas to propell what ever object you have. I did a small section of pipe with a T on the end so I could have a base to set it against my person.
Tap gas chamber tube so it will accept the air chuck on your c02 tank.
Use a threaded pvc coupling to go on the exit end of the ball valve. I used a 3" pvc pipe for the barrel so it is light and can hold a beer can.
This is my first tech artical if some of the directions arn't clear pm me and I will explain as best as I can.

 

[P]

Heck Yes... I can see this gettin bad

laughing



Oh yea, give some dimension on your setup, it seems to work well. Also a nice pic would be great... I mean, this is tech afterall. Im pretty sure my wife and neighbors would prefer this over the oxy-aceytelene trash bag bombs.

 

[InDaShop]

Thread hijack for Paola Story~

So there I was purchasing parts for a potato gun in the True Value in Paola, Kansas. When one of the salesmen recognizes what I'm buying parts for. His name was Steve Robb, he says "Boy, you're building it all wrong." "Come back here, I'll show you how to build a good one."
So we go back in the True Value office/wookbench type area. And he goes to hack sawing pieces and drilling pieces, sending me running around the store getting certain fittings, and pipe glue, and so forth.

I end up walking out the door with a ready built spudgun for around $10. All I needed was to swing by Walmart and buy some AquaNet. Ah those were the days.

 

[under_psi]

pics....i need one....joel and i were talking about it last nite.....

 

[kid rok]

I'll post some pics up tomorrow with some dimensions for the barrel and the gas chamber. I am also thinking it would work with nitrogen.

 

[blacksheep10]

he had 2"pvc about 3" long with a cap on one end, into a T, 3" long coming out the other side, and a cap with reducer down to 3/8" pipe for the c02. Now, for the barrel, you come up off the other 2 pieces at 90* (the bottom/both sides of the T are about 10" across, with the barrel running away perpendicular. on top of the T you put a ball vavle in. Since your chamber and T are 2", you get a 2" ball valve. you could go bigger for more hurting power, but this one works well for bottles and cans. After that, on the other side of the valve, you can go up to 3" or some hdpe or sdr35 or some sch80 or so, whatever you can adapt to and fit your preferred projectile. 3" with beer cans and water to seal works well, I can attest to that. ouch
anyway, there you have it, charge up and charge the Fitty, some hurtin is coming on.

 

[Bones]

I need to make one for new years and find a CO2 since I will be kegging beer in the near future.

 

[6uldv8]

I love to read Blacksheeps descriptive ramblings.....I'm going to start a collection of "Kelly's Classics"!

 

[Bones]

I love to read Blacksheeps descriptive ramblings.....I'm going to start a collection of "Kelly's Classics"!

You know he is talking to himself while typing as well.

No need for an imaginary friend that way

 

[kid rok]

Specs for canon
The gas chamber-
I used a 2"x8" pipe with a tee on the end. The tee has a double threaded insert on both sides with a cap on top of each. Make sure you get the connections for the gas chamber very tight, and use gas tape not water tape.
The go button-
I used a 2" metal ball valve, this piece will be your most expensive piece
Barrel-
Use any type of fitting that will screw into the ball valve and up size to a three inch pvc pipe that makes the barrel. On the exit end of the ball valve I have always used pvc. IT's never failed yet, but will break if you drop it. The connection between the ball valve and the three inch pipe will be your week point. The barrell, from ball valve to tip measures 36".
Charging system-
To get the pressurized gas from the co2 bottle into the gas chamber, I drilled a hole in the side then tapped it to fit the male end QD. This way you can easily plug your female end into it and your in bizness. Make sure you use gas tape on the threads. Tap location will vary upon the user, but I put mine on the right side at the 4oclock position. This way I can operate the canons ball valve with my left hand and hold it with my right.

 

[kid rok]

Pics

http://im1.shutterfly.com/procserv/47b7cf08b3127cceb1f7f7e10b9600000026100AauG7lo1ZOWMg[/img]

 

[blacksheep10]

dont' forget to tape a mag light to the barrel for night hunting
You can keep that duct tape

 

[Welderd]

so do you leave the tank connected to it?

any problems with the high tank pressures in the gas chamber?

 

[Bones]

How much pressure do you put into it per shot?

 

[blacksheep10]

the fixed reg I have on my bottle is 150 psi. yep, left 150 hooked up to it the whole time. when you hit the valve it lets off the stored pressure, and you have to close it pretty quick to keep the tank from just running

 

[Welderd]

mine's about completed, first test fire tonight using the air compressor.
I'm gonna see how good it'll shoot at about 95psi cause I got on board air on the yota and trail wars could be fun, especially since I got the only cannon!!

 

[Welderd]

got it built and tested - works good thanks for the ideas guys. i copied it exactly

doesn't shoot as far as I thought but is impressively loud. I only ran it on shop air at 125psi so far

 

[kid rok]

got it built and tested - works good thanks for the ideas guys. i copied it exactly

doesn't shoot as far as I thought but is impressively loud. I only ran it on shop air at 125psi so far

A little trick to make it shoot further is to pour water into the barrel. The water seals around the projectile and gives it more go power. The amount of water, depends on what your shooting out of it.

 

[Welderd]

For now I'm trying to shoot tshirts - guess I could ziplock em

I need to lube the ball valve so I can open it quicker - any suggestions?
I'm only getting it half way when it fires. best shot so far was when i kicked it open

 

[blacksheep10]

that's going to be tough to launch a shirt. no lube unless you wrap the shirt and the pb blaster on the ball valve will get on teh shirt too. I'd wrap the shirt (zip lock) and zip tie them and use some ball lube.