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pellet pistol valve. NEED HELP

This area is for the discussion of BB or airsoft sub machine guns, and or other small arms such as pellets.
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pellet pistol valve. NEED HELP

Unread postAuthor: ignatorius » Thu Aug 23, 2012 8:35 am

Hi
i am new at this forum but i have already build some airguns (i am not a noob at this).
I am trying to build a pellet pistol (single shooter 100 - 120 PSI ) but i need help whit the valve.
The vale has to be in the air chamber tube and release the air up from the tube where the barrel and pellet loading will be.
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Unread postAuthor: jackssmirkingrevenge » Thu Aug 23, 2012 8:39 am

Welcome to the forum, a diagram of what you are trying to achieve would be helpful as it's not really clear from your description.

Also, if you've made other pneumatic launchers, this forum has a showcase section if you want to show them off :)
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Unread postAuthor: ignatorius » Thu Aug 23, 2012 8:48 am

This is the idea .
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Unread postAuthor: jackssmirkingrevenge » Thu Aug 23, 2012 10:12 am

What sort of tools and materials do you have to hand?

A hammer valve would fit well in that setup, indeed it's how many precharged commercially available airguns are configured:

Image

Alternatively, depending on the diameter of your air tank, a small quick exhaust valve could also fit in there.
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Unread postAuthor: Labtecpower » Thu Aug 23, 2012 10:17 am

If the valve needs to be in the chamber tube, you could also make a small chamber-sealing piston valve :)
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Unread postAuthor: ignatorius » Thu Aug 23, 2012 12:18 pm

just made this valve, works great. :D
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Unread postAuthor: jackssmirkingrevenge » Thu Aug 23, 2012 12:49 pm

ignatorius wrote:just made this valve, works great. :D


Made the drawing or actually built it?! :?
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Unread postAuthor: ignatorius » Thu Aug 23, 2012 1:50 pm

jackssmirkingrevenge wrote:
ignatorius wrote:just made this valve, works great. :D


Made the drawing or actually built it?! :?



i made it not just draw it. going to make some photos and post them next day.
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Unread postAuthor: Labtecpower » Thu Aug 23, 2012 1:54 pm

i made it not just draw it. going to make some photos and post them next day.


assuming you're using a hammer to power the valve, connect your bolt to the hammer and you've made yourself a crosman system :D
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Unread postAuthor: ignatorius » Thu Aug 23, 2012 2:04 pm

Labtecpower wrote:
i made it not just draw it. going to make some photos and post them next day.


assuming you're using a hammer to power the valve, connect your bolt to the hammer and you've made yourself a crosman system :D



:lol: nah i will be using 120 psi only so i am thinking not to put a hammer but make a triger that will just push the valve .
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Unread postAuthor: jackssmirkingrevenge » Fri Aug 24, 2012 2:30 am

That will be like using a blowgun directly as a valve. You can get fairly decent power if you "snatch" the trigger, but don't expect consistency and accuracy.
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Unread postAuthor: ignatorius » Fri Aug 24, 2012 3:33 am

jackssmirkingrevenge wrote:That will be like using a blowgun directly as a valve. You can get fairly decent power if you "snatch" the trigger, but don't expect consistency and accuracy.


so you suggest to use a hammer that opens the valve ?
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Unread postAuthor: pneumaticcannons » Fri Aug 24, 2012 3:44 am

Yes, otherwise, just buy a blowgun.
What caliber do you plan on using?
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Unread postAuthor: ignatorius » Fri Aug 24, 2012 3:51 am

pneumaticcannons wrote:Yes, otherwise, just buy a blowgun.
What caliber do you plan on using?


i am going to use 4.5 mm (0.177 cal) pellets. i am using 120 psi only so i gona make hammer that opens the valve long enough to let all the air come out.
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Unread postAuthor: ignatorius » Fri Aug 24, 2012 9:16 am

This is the valve that i made. No leaks, works great.
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