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making a cloud, few questions

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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making a cloud, few questions

Unread postAuthor: super spuder » Thu Mar 27, 2008 8:18 pm

hmm, long time since i have been on this site. Think its time to make a cloud. Just have a few quick questions. How long should the chamber be? going to be 3 inch diameter. How long should the barrel be? The barrel should be 6mm id right? See allot of people using brake line for barrels, anything else work good?
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Unread postAuthor: OuchProgramme » Thu Mar 27, 2008 9:21 pm

Brake lines work well, since they're already set with a nipple, so all you have to do is drill a hole and screw the brake line in.
I get my piping from hobby shops
3 Inch diameter chamber? Thats big....
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Unread postAuthor: super spuder » Thu Mar 27, 2008 9:26 pm

would 1.5 inch pipe work better? i dont know much about these things.
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Unread postAuthor: elitesniper » Thu Mar 27, 2008 9:28 pm

yes, the smaller the chamber the stronger it is.
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Unread postAuthor: bigbob12345 » Thu Mar 27, 2008 9:28 pm

I would even say 1.25in
The rule of bbmg is
larger chamber=more ammo, less velocity
longer barrel=faster velocity, less ROF

Edit:Elitesniper beat me
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Unread postAuthor: OuchProgramme » Thu Mar 27, 2008 9:30 pm

bigbob12345 wrote:I would even say 1.25in
The rule of bbmg is
larger chamber=more ammo, less velocity
longer barrel=faster velocity, less ROF

Edit:Elitesniper beat me


+1 to that.

If you're planning to use the cloud in an airsoft skirmish, i suggest having a smaller chamber and a longer barrel.
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Unread postAuthor: super spuder » Thu Mar 27, 2008 9:34 pm

na, this is just going to be for shooting stuff at my house. Thanks for the help, guess i will be going to get some small pipe sometime soon. would a longer chamber educe velocity to?
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Unread postAuthor: elitesniper » Thu Mar 27, 2008 9:39 pm

yes, as it adds more volume to the chamber theres less power.
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Unread postAuthor: super spuder » Thu Mar 27, 2008 9:47 pm

well that makes sense, glad i didn't pick up all the 3 inch adapters and stuff today.
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Unread postAuthor: elitesniper » Thu Mar 27, 2008 9:51 pm

Do they sell 3'' pipe at your local homedepot?
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Unread postAuthor: super spuder » Thu Mar 27, 2008 9:57 pm

i get all my pipe from TSC... and yess they sell 3" pipe
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Unread postAuthor: Carlman » Thu Mar 27, 2008 10:02 pm

i made my cloud out of 1.5" end cap, 1.5" male threaded and a 1.5" threaded end cap. Along with a brass barrel it works a treat, rips up cans, card anything!

heres a link to it:

http://www.spudfiles.com/forums/camo-cloud-t13690.html
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Unread postAuthor: super spuder » Thu Mar 27, 2008 10:13 pm

i was looking at that one erlier tonight, looks pretty sweet. think i might use 1.5 inch pipe.
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Unread postAuthor: Carlman » Thu Mar 27, 2008 10:17 pm

yea heres a few pics before i put the camo on it:

Image

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Unread postAuthor: Hubb » Thu Mar 27, 2008 10:50 pm

bigbob12345 wrote:I would even say 1.25in
The rule of bbmg is
larger chamber=more ammo, less velocity
longer barrel=faster velocity, less ROF


This is understood, however, is there a good ratio to maximize both ROF and velocity, or is it just trial and error?
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