Need some serious help...

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
wilonpill
Private
Private
Posts: 9
Joined: Tue Jul 03, 2007 5:10 pm

Ok, before anyone gets pissed, I searched and just got confused.

My dad accidentally destroyed my last cannon and I want to build a new one, and he agreed to pay for it.

My question is, what kinda costs am I looking at if i wanna build a cannon using my paintball air tank, and what kinda parts should i be looking at?I'm not sure on the size of the threads, but the tank is 70ci/4500PSI and its regulator puts out around 750PSI. I understand I will need another regulator that can bring the pressure down to about 100PSI, and i will need a way to connect said regulator to a cannon.

I plan on using some sort of ball valve, because electric sprinkler valves are too complicated and from what I've seen expensive. I figure i will shoot small potatoes and nerf rockets, so a 2" barrels should fit the bill.

Thanks for the help guys.
sandman
Corporal 2
Corporal 2
Posts: 672
Joined: Thu Mar 15, 2007 6:59 pm

sprinkler valves are only 20 dollars and the tutorial on how to mod them is very easy to follow

i think that u will have to buy the other regulator first to see what kind of output it has and then u can see what u need for your cannon

but im not the god of pneumatic cannons so dont take my word as gosple
wilonpill
Private
Private
Posts: 9
Joined: Tue Jul 03, 2007 5:10 pm

sandman wrote:sprinkler valves are only 20 dollars and the tutorial on how to mod them is very easy to follow

i think that u will have to buy the other regulator first to see what kind of output it has and then u can see what u need for your cannon

but im not the god of pneumatic cannons so dont take my word as gosple
I think I'll see if i can find a used regulator with an adjustable output. That should run me around 25$ if i can get a good deal.
User avatar
mike1010
Specialist
Specialist
Posts: 197
Joined: Thu Jun 21, 2007 6:38 pm

ill mod a sprinkler valve for free just pay shipping and send me the parts its supper easy
wilonpill
Private
Private
Posts: 9
Joined: Tue Jul 03, 2007 5:10 pm

mike1010 wrote:ill mod a sprinkler valve for free just pay shipping and send me the parts its supper easy
Well, if i was to get into this type of thing i would have to eventually learn how to do it myself. Thanks for the offer, but i think I'll be able to manage modding without too much damage to the valve...or myself.

BTW, do you guys think using 12grams would be simpler and yield the same results?
User avatar
turbohacker
Specialist 3
Specialist 3
Posts: 392
Joined: Wed Dec 20, 2006 12:34 am

You will go through alot of 12grams. You HPA setup is the best bet. Geta reg from here... http://www.palmer-pursuit.com/ecom/prod ... d2bd7f7344

And here is a remote line so you can mount your HPA tank anywhere...http://www.speedytoys.com/shop/item.asp?itemid=1145

And, to skip a step, here is both of them together...http://www.palmer-pursuit.com/ecom/prod ... d2bd7f7344

I would defanately reccomend a modded sprinkler valve, they are much faster and easyer to operate than a ball valve (they run about $20 with the blow gun too) http://www.spudfiles.com/forums/modding ... -t305.html
<-- This is not a cat avatar

If it walks like a dog, sratches like a dog, and barks like a dog, than its probobly a...-TURTLE, it's a TURTLE!!! Cant you see?!!!
frankrede wrote:Great googlay mooglay!
Thats a beast!
sandman
Corporal 2
Corporal 2
Posts: 672
Joined: Thu Mar 15, 2007 6:59 pm

lol, turbohakcer i just saw that we have the same post count :)

and i would go with the HPA thing like turbohacker said
Hawkeye
Specialist 4
Specialist 4
Posts: 462
Joined: Sun Jan 21, 2007 7:12 pm

What was your last cannon? Have you forgotten how you made it?
wilonpill
Private
Private
Posts: 9
Joined: Tue Jul 03, 2007 5:10 pm

Hawkeye wrote:What was your last cannon? Have you forgotten how you made it?
My last cannon used a compressor and a ball valve.
turbohacker wrote:You will go through alot of 12grams. You HPA setup is the best bet. Geta reg from here... http://www.palmer-pursuit.com/ecom/prod ... d2bd7f7344

And here is a remote line so you can mount your HPA tank anywhere...http://www.speedytoys.com/shop/item.asp?itemid=1145

And, to skip a step, here is both of them together...http://www.palmer-pursuit.com/ecom/prod ... d2bd7f7344

I would defanately reccomend a modded sprinkler valve, they are much faster and easyer to operate than a ball valve (they run about $20 with the blow gun too) http://www.spudfiles.com/forums/modding ... -t305.html
Though Palmer always makes and sells quality products, they are a bit expensive. IMO, too expensive for just a cannon i wanna build cheaply.

Do any of you guys know where else i could grab an ok regulator?

All the paintball ones are like 60$, and that is too much. It is starting to look like this project will use 12grams.
User avatar
WOW!!
Corporal 4
Corporal 4
Posts: 891
Joined: Thu Mar 16, 2006 9:47 pm
Location: New jersey

Why not build a phenumatic and then use a shrader valve, and then get a 12g adapter for filling tires? That would work for a smaller cannon.
pyrogeek
Specialist 4
Specialist 4
Posts: 457
Joined: Sat May 13, 2006 7:43 pm
Location: moline Illinios

The Evil Detonator is supposed to be pretty good. And it's cheap, like under $30 if you shop around. There is one downside, you have to break it in with like a case or two of paint before you get the consistancy and accuracy. After that though, I heard of it shooting 300fps on a paintball gun over and over.
I'm weird, I know it, you don't need to tell me.
wilonpill
Private
Private
Posts: 9
Joined: Tue Jul 03, 2007 5:10 pm

WOW!! wrote:Why not build a phenumatic and then use a shrader valve, and then get a 12g adapter for filling tires? That would work for a smaller cannon.
I like this idea. Where can i get one of these?
User avatar
VH_man
Staff Sergeant 4
Staff Sergeant 4
Posts: 1827
Joined: Sat Dec 09, 2006 6:00 pm
Location: New Hampshire
Been thanked: 1 time

wow........ that evil detonator regulator might be in my hands soon. i like the prospect of that. why spend 100 bucks when you can spend 30? just gotta watch out, its lowest output pressure is 100 PSI........... nothing a second reg cant handle.
wilonpill
Private
Private
Posts: 9
Joined: Tue Jul 03, 2007 5:10 pm

VH_man wrote:wow........ that evil detonator regulator might be in my hands soon. i like the prospect of that. why spend 100 bucks when you can spend 30? just gotta watch out, its lowest output pressure is 100 PSI........... nothing a second reg cant handle.
PVC can easily handle 100PSI. I don't see the problem.
User avatar
iPaintball
Corporal 2
Corporal 2
Posts: 695
Joined: Sun Mar 04, 2007 8:37 pm

Run it un regulated. Just have a small metal chamber and a metal ball valve ror the main valve. It's way cheaper then using a regulator.
Summer Projects:
CO2 tank hybrid: Gotta fix the meter :(
Cane gun: Needs a pilot/fill setup
1.5" piston valve gun: Almost done
Post Reply

Create an account or sign in to join the discussion

You need to be a member in order to post a reply

Create an account

Not a member? register to join our community
Members can start their own topics & subscribe to topics
It’s free and only takes a minute

Register

Sign in