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Regulator

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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Regulator

Unread postAuthor: OfTheLion » Tue Oct 25, 2011 11:22 pm

I apologize for the repetitive questioning on the same topic, now I am being relatively rushed to start my BBMG project. Could anyone reccomend a good, cheap CO2 regulator? It will be used on a five pound or smaller tank, and will be hooked up to an inline vortex BBMG, if that makes a difference. Also, could anyone tell me if a standard 20 oz. paintball tank would be enough to power a BBMG? Again, my apologies for incessant questioning.

Gracias,
Ofthelion


:D
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Re: Regulator

Unread postAuthor: jackssmirkingrevenge » Wed Oct 26, 2011 12:26 am

OfTheLion wrote:Could anyone reccomend a good, cheap CO2 regulator?


Aquarium reg?

I have no personal experience with them but some claimthey are good for 300 psi output.

Also, could anyone tell me if a standard 20 oz. paintball tank would be enough to power a BBMG?


More than enough, make sure you have an expansion chamber though to avoid it freezing up.
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Unread postAuthor: OfTheLion » Wed Oct 26, 2011 5:54 am

Thanks; also, do you know how many FPS 300 psi would give me? Again, I apreciate the quick reply.
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Unread postAuthor: jackssmirkingrevenge » Wed Oct 26, 2011 7:00 am

OfTheLion wrote:how many FPS 300 psi would give me?


http://www.handresearch.com/news/pictures/lifeline-measurement-equipment.jpg


- projectile size and weight
- barrel length
- BB chamber size
- valve flow
- barrel detent present/absent
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Unread postAuthor: OfTheLion » Wed Oct 26, 2011 2:35 pm

Thanks, but the link disn't work for me. Although, I appreciate the thought. Lol, I think I'm just going to build it. I mean, I can always experiment with all that technical stuff later. :wink:
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Unread postAuthor: jackssmirkingrevenge » Wed Oct 26, 2011 2:48 pm

It was meant to be something like this:

Image

I think I'm just going to build it. I mean, I can always experiment with all that technical stuff later.


I advise heavily against that, post a design first and let the forum have a look at it, better to spot mistakes before you start cutting and gluing.
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Unread postAuthor: Gun Freak » Wed Oct 26, 2011 4:06 pm

@jsr
[youtube]http://www.youtube.com/watch?v=VbodZKrAOGg&feature=player_embedded[/youtube]
:D
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Unread postAuthor: Technician1002 » Wed Oct 26, 2011 7:04 pm

Are you dense? Everyone at my job knows a piece of string is just long enough to reach both ends an no longer. Don't they teach science anymore?
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Unread postAuthor: Gun Freak » Wed Oct 26, 2011 7:09 pm

Good answer, actually. But not technically answering the question.
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Unread postAuthor: mattyzip77 » Wed Oct 26, 2011 7:14 pm

How much wood would a woodchuck chuck if a woodchuck could chuck wood???
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Unread postAuthor: OfTheLion » Wed Oct 26, 2011 8:57 pm

Haha. :D I'm pretty sure that you all are incorrect. In fact, string does not even exist! If my calculations are correct... [checks calculations] Darn it! I thought I was on the verge of a breakthrough! :( But on a more serious note, I will try to get a good drawing up. Gun freak, you will probably be able to help me on this one, but what is a good diameter hole for my vortex block? And how much of the hole should the skirts cover? (I've heard aprox. 70%)

PS- (Matty, I wanted to let you know that there is most certainly a grammatical error in your signature. When used correctly, Pittsburgh Steelers and suck should not be used in the same sentence, with the only exception being: "The Pittsburgh Steelers are 1337, and all other NFL teams suck, especially the Patriots.")
:wink: Not flaming, just sayin'. :D
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Unread postAuthor: Gun Freak » Wed Oct 26, 2011 9:08 pm

Someone please correct me if I'm wrong.
From what I think I remember reading, a smaller hole means a faster ROF. And vice versa. My M16 uses approximately a 1" hole. It has an insane ROF. That's goes without saying for BBMGs though. I would hypothetically suggest a 3/4-1" hole. Any smaller and your chamber probably won't hold much ammo, any larger and your chamber will probably have to be of large diameter (at least 2").
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Unread postAuthor: OfTheLion » Wed Oct 26, 2011 9:29 pm

Sounds good to me. Thanks for that, I hadn't any idea of how large it should be. Hmmm... Also, does the vortex block Have to be the exact diameter of the pvc pipe? Like if I have a 2" chamber, does my block have to be 2" tall to divide the pipe in half?
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Unread postAuthor: jackssmirkingrevenge » Thu Oct 27, 2011 12:33 am

Gun Freak wrote:@jsr


Had seen it, brilliant :) though I don't find Alan Davies as amusing as I used to.

Vortex blow hole should be around 3 times the diameter of your projectile at least, and the area not covered by the skirt should be between 1.1-1.9 times the projectile diameter.
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Unread postAuthor: OfTheLion » Thu Oct 27, 2011 2:31 pm

Thanks JSR, that will really help me tremendously. :)
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