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Looking for a good gun to build

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Looking for a good gun to build

Unread postAuthor: Claybob86 » Sun Jan 07, 2007 1:13 pm

Hey all, this is my first post. weeee. its a rainy day here in KY, and ive decided i want to build me a pneumatic gun. I have a compustion one, but the pneumatics have always seemed cooler and shoot further. Does anybody know where i can find a good gun to build? also, i would like to use the sprinkler valve, bc ive heard they open MUCH faster than the ball valves. Is this true, and if so, can you get a sprinkler valve at lowes or home depot? THANKS!
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Unread postAuthor: Bluetooth » Sun Jan 07, 2007 1:17 pm

One:There are bunches of posts EXACTLY like this one asking what gun to build. Two:Yes sprinkler valves open much faster than ball valves. You can increase the speed een more by modding them to use pneumatic actuation. Three:You should be able to buy them at Home Cheapo or Lowes.
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Unread postAuthor: squeaks » Sun Jan 07, 2007 1:50 pm

four: all you need is a chamber, barrel, and valve. Buy some pvc parts(pressure rated ones that say nsf-pw on them and not using bell reducers but bushings instead) and just throw them together. Make it up yourself, just make it how you want it to be made.
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Unread postAuthor: Claybob86 » Sun Jan 07, 2007 1:58 pm

thanks guys, i think im gonna keep it pretty simple since its my first pneumatic gun, ill post pics and let you all know how it turns out
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Unread postAuthor: squeaks » Sun Jan 07, 2007 2:02 pm

Remember, Pressure rated!!!! I always get worried when someone new makes a gun 'cause I don't want them to get dwv parts,(ones that say nsf-dwv instead of nsf-pw) pump their gun up to 100 psi, and then have it blow up in their faces.

Might I suggest to fill your gun that you attacht a 1/4" ball valve and one of those silver quick connect pieces. It makes it so much easier to fill your gun with a compressor than trying to use a schrader. Those things are a pain in the butt! I enjoy being able to hook my compressor to my gun and just walking away. Ahh, the joys of relaxation.
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Unread postAuthor: Bluetooth » Sun Jan 07, 2007 2:06 pm

How do you know he has a compressor?
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Unread postAuthor: squeaks » Sun Jan 07, 2007 2:09 pm

Just guessing. Most people do. If you don't have a compressor than of course get a schrader.
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Unread postAuthor: Claybob86 » Sun Jan 07, 2007 2:11 pm

^^ i gots me one of them big o compressors! i work on cars a lot, so a compressor is a MUST
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Unread postAuthor: squeaks » Sun Jan 07, 2007 2:15 pm

See, what did I tell ya. Go with with the ball valve and silver quick connect piece. That way it'll be just like hooking up a nail gun or any other pneumatic device to your compressor. It makes everything nice. Plus, if you have a tiny itty bitty compressor like mine then you can just let it sit while your compressor fills it up over the next 5-10 minutes.
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Unread postAuthor: Bluetooth » Sun Jan 07, 2007 2:19 pm

I agree but don't assume and he just said he had a big compressor not a little one.
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Unread postAuthor: Claybob86 » Sun Jan 07, 2007 4:24 pm

I have one of the huge compressors, its as tall as me. But i ran into a problem, i was looking at pvc at lowes, and i found a 3" i wanted to use as the chamber, and i looked at the thickness, and the wall of it is like 1/4" thick, so i figured it would work. but on the way home, i looked over and it says **NOT FOR PRESSURE** i was like wtf! is it really not strong enough to hold air pressure?
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Unread postAuthor: frankrede » Sun Jan 07, 2007 4:31 pm

Most pvc pipe says nsf-dwv on it but should also carry the nsf-pw and a psi on it.
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Unread postAuthor: Claybob86 » Sun Jan 07, 2007 4:34 pm

this one is the nsf-dwv and it says NON PRESSURE or something. But it looks awful heavy duty, should i really not use it? im too young to die :(
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Unread postAuthor: Bluetooth » Sun Jan 07, 2007 5:14 pm

DON'T use it. Since its thick I'm guessing it's cellular core which means its two layers of solid PVC and foam in between.
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Unread postAuthor: CpTn_lAw » Sun Jan 07, 2007 5:20 pm

use metal........a lot more practical and a lot more ease of use, especially in winter.
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