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Semi auto. Please check over parts before i order :P

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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Semi auto. Please check over parts before i order :P

Unread postAuthor: killerbanjo » Wed Jan 05, 2011 8:56 pm

Hey all just wanted you to check over some parts for me before i order them.

I am using the semi design for a airsoft gun
Image


But instead of having the tee connecting the qev and blowgun im going to have the blowgun connected directly and doing the semi auto mod.
Image

I will then run it off 12grm co2 cartrages from this
http://www.tyreinflators.co.uk/pressure-regulators/innovations-composite-regulator-kit-incl-2x16g-nt-co2-32101-/prod_1255.html?category=21
Manufacturer information here
http://www.genuineinnovations.com/composite-regulator.html

And there lies my first problem... How do i connect that to the blowgun input? Please help!


Anyway... Here are the parts i was talking about

3: 1/4 to 1/4 BSP Elbows - 1 for the qev to blowgun. 1 for the chamber and one for the air supply

1: Blow gun - Obvious - Has 1/4 BSP fittings

1: 1/4 QEV

1: 1/4 Cap (For the chamber)


Thanks for looking all, looking forward to answers.


EDIT: Oh and what sort of fitting would i need to connect the output of the qev to a 6mm I/D tube?
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Unread postAuthor: POLAND_SPUD » Wed Jan 05, 2011 11:42 pm

there lies my first problem... How do i connect that to the blowgun input? Please help!

Image
D Various fittings threaded into the side 10-32 output ports of the Miniature CO2 regulator

use push-to-connect fittings... that's what you can see in pic D

a 10-32 fitting on the reg, a length of tubing and 1/8" fitting on the blowgun
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Unread postAuthor: Lockednloaded » Wed Jan 05, 2011 11:58 pm

a quick warning if you're actually getting a 6mm ID barrel, Its a very tight fit, you have to really push the BB into the barrel, much tighter than any commercial airsoft barrel.
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Unread postAuthor: jackssmirkingrevenge » Thu Jan 06, 2011 12:43 am

POLAND_SPUD wrote:use push-to-connect fittings...


Or epoxy all the way :D
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Unread postAuthor: Mr. Potato Head » Thu Jan 06, 2011 12:47 am

Or epoxy all the way

haha epoxy is really nice, but how would he change the cartriges?
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Unread postAuthor: jackssmirkingrevenge » Thu Jan 06, 2011 1:20 am

Mr. Potato Head wrote:haha epoxy is really nice, but how would he change the cartriges?


You can incorporate threaded fittings, here's an example.
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Unread postAuthor: killerbanjo » Thu Jan 06, 2011 12:00 pm

Hmm... I might use epoxy as i cannot find any of those push fit connections anywear!

Can someone have a look please, either on http://www.airlines-pneumatics.co.uk/

or http://www.technobotsonline.com/pneumatics.html

Also if you do find one could i have an output on one side and a 1/8 10bar gauge on the otherside?

Thanks a bunch!

Oh and what sort of fitting would i need to connect the output of the qev to a 6mm I/D tube?

Cheers for the warning Lockednloaded... useful!
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Unread postAuthor: POLAND_SPUD » Thu Jan 06, 2011 12:38 pm

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Unread postAuthor: killerbanjo » Thu Jan 06, 2011 12:40 pm

Thanks but these seem to be diffrent to the ones in the pic
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Unread postAuthor: POLAND_SPUD » Thu Jan 06, 2011 12:59 pm

Technically it doesn't matter what type of fittings you use - the reg has ports where you can thread in fittings. As long as the size of thread is the same you should be fine.

I am not sure if 10-32 threads match M5 threads (damn you dudes should really really really consider switching to metrics... it's 2011, not 1011 lol). Can someone clarify this?
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Last edited by POLAND_SPUD on Thu Jan 06, 2011 1:18 pm, edited 1 time in total.
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Unread postAuthor: killerbanjo » Thu Jan 06, 2011 1:05 pm

Is this the correct peice?
http://www.airlines-pneumatics.co.uk/we ... de=S060102

Also what is the thread in mm or inches? As i do not understand the numbers code, I think its american

Thanks for the reply
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Unread postAuthor: POLAND_SPUD » Thu Jan 06, 2011 1:23 pm

no, you need a male fitting (bc you've got female ports on the reg)... and I am not sure whether M5 is the same as 10-32

Though you should be able to get push-to-connect fittings in 10-32 too

ohh I found some -> http://www.omega.co.uk/ppt/pptsc.asp?ref=OM-AIR
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Unread postAuthor: killerbanjo » Thu Jan 06, 2011 2:58 pm

Thanks for finding that P_S. After lots of searching it looks like M5 and 10-32 IS the same

This the the new CRUDE design

Sorry for the fail but i couldnt be botherd to draw it myself

Image


And were only tought metric in school now
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Unread postAuthor: spudamine » Thu Jan 06, 2011 3:08 pm

I am not sure if 10-32 threads match M5 threads (damn you dudes should really really really consider switching to metrics... it's 2011, not 1011 lol). Can someone clarify this


No they don't, 10-32 in an american UNF thread
also from the regulator description:
Country of Origin - USA


The UK is mostly metric, this is about the only time I've seen these threads on anything and the fittings are therefore hard to find, that one poland spud linked to is probably about it.
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Unread postAuthor: Vincenzo » Thu Jan 06, 2011 5:12 pm

To cut down on pilot volume, attach the pressure gauge to the chamber. Also, the blowgun goes the other way. :)
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