Help with mini valve gun

Miniature guns are novelty custom, unique, and sometime downright crude! Common construction materials often include pill bottles or pens. Show us your work!

Is this too hard of a build for me?

Poll ended at Sat Jan 14, 2012 2:30 pm

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Total votes: 1
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Gun Freak
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Mon Jan 09, 2012 9:38 pm

:D

That, sir, would be a lot to type :lol:

JSR has a simple tutorial picture I think... he'll leave a link in about an hour :wink:
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pneumaticcannons
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Mon Jan 09, 2012 10:01 pm

I have a tutorial on my channel... Did you see that? just wondering since you're plan sounds exactly like what my video suggested however I strongly recommend using a solid rubber piston.
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Proxywars
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Mon Jan 09, 2012 11:01 pm

Lol your video inspired me to make it. I cant find the 8mm ID brass pipe
or 1/8in ID brass pipe. If there is any other pip that I can use instead please tell me. I checked at lowes and home depot. I even checked online and can't find those pipes. :?
warhead052
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Mon Jan 09, 2012 11:44 pm

Your not looking hard enough. Look harder. Trust me, you will find it.
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Tue Jan 10, 2012 12:02 am

I am but I dont want it shipped I want to pick it up. Does anyone have a gun like this with different tubes if so tell me the tube dimensions. I just needa finish wat I started.
warhead052
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Tue Jan 10, 2012 12:16 am

Well, there is a store near me called the model box, and they sell tubing of all shapes and sizes below 1". Different metals too, like brass, copper, aluminum, I think titanium which is pretty cool, and a few others. So look for a hobby store or a model store near you, and ask if they have what you need.
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Tue Jan 10, 2012 12:23 am

Tried. At lowes they have small pipes as small as 1/4 maybe smaller I just need to know a good ID for the barrel and chamber. Also wat kind of metal I should look for.
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Gun Freak
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Tue Jan 10, 2012 6:17 am

Dude you can use any pipes you want :roll:
Just make sure they're seamless.
It's just a piston valve, it will work with any size pipes. People use 8mm for realism (~same size as pen) and 1/8" barrel because that's a good size for the chamber size.
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Tue Jan 10, 2012 5:28 pm

K ill go t\look agin today
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Wed Jan 11, 2012 7:03 pm

I found a 1/2 od and 1/2 id ima get started. THE 1/2 OD will go in the id but it is smaller so itll work as a barell alot of space for air
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Gun Freak
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Wed Jan 11, 2012 7:25 pm

alot of space for air
Zero space for air... I think you have your pipe sizes wrong :lol:
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Wed Jan 11, 2012 7:32 pm

The sizes were wrong it the barell slides out and theirs a pretty big gap
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Gun Freak
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Wed Jan 11, 2012 7:38 pm

In what world is there a gap between 1/2" and 1/2"?
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Wed Jan 11, 2012 7:54 pm

Lol lowes does not make great calculations but there is a gap.
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Wed Jan 11, 2012 7:59 pm

1/8 gap body 5/16 id barrel 4/16id
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