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Can someone good help me ? please

Built a BB Machine Gun? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Can someone good help me ? please

Unread postAuthor: Haniball1337 » Sat Mar 16, 2019 9:13 am

Hi! i Want to make airgun i have qev valve and some pipes and air chamber , can someone instruct me how to make airgun with this items>
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Re: Can someone good help me ? please

Unread postAuthor: jrrdw » Sun Mar 17, 2019 6:07 am

Spudfiles is a very large data base of spud canon information. There is web page after web page here about this very type of cannon configuration. Do some research on this, it's fun...

Welcome to Spudfiles! :)
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Re: Can someone good help me ? please

Unread postAuthor: jackssmirkingrevenge » Sun Mar 17, 2019 6:13 am

Welcome to spudfiles!

Here's the basics, however as jrrdw pointed out there is plenty of information already out there for you to seek out.

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hectmarr wrote:You have to make many weapons, because this field is long and short life
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Re: Can someone good help me ? please

Unread postAuthor: farcticox1 » Sun Mar 17, 2019 10:02 am

Or something like this :idea: What is the barrel and air source :?:

QEV 2.jpg
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Re: Can someone good help me ? please

Unread postAuthor: Haniball1337 » Mon Mar 18, 2019 9:45 am

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Last edited by Haniball1337 on Thu Mar 21, 2019 9:52 am, edited 1 time in total.

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Problem

Unread postAuthor: Haniball1337 » Wed Mar 20, 2019 1:27 pm

Hi , I made that , like he https://www.youtube.com/watch?v=N04KpfvcU5M , but i dont add spring to QEV , and i dont know but its not working , i open ball valve and the air go from the valve where i pumps air , I need to add spring or what ? Plase help
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Re: Can someone good help me ? please

Unread postAuthor: jackssmirkingrevenge » Thu Mar 21, 2019 10:06 am

If you want to fill from the chamber side, then you have to modify the piston/diaphragm. An easy way to do this is to heat up a pin and poke a hole in the outer edge.

Did you try filling it up from the nipple on the ball valve?
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hectmarr wrote:You have to make many weapons, because this field is long and short life
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Re: Can someone good help me ? please

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Re: Can someone good help me ? please

Unread postAuthor: farcticox1 » Thu Mar 21, 2019 3:14 pm

Another good explanation

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Re: Can someone good help me ? please

Unread postAuthor: Haniball1337 » Fri Mar 22, 2019 7:31 am

I fill air to that
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Re: Can someone good help me ? please

Unread postAuthor: Anatine Duo » Fri Mar 22, 2019 6:13 pm

looks right to me. Is the valve stuck perhaps? With no air pressure, can you push the piston back towards the pilot?
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Re: Can someone good help me ? please

Unread postAuthor: Haniball1337 » Sat Mar 23, 2019 2:46 am

I cant, rubber thing is stuck, i cant pull it out and i hear the air escape
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Re: Can someone good help me ? please

Unread postAuthor: farcticox1 » Sat Mar 23, 2019 6:22 am

Air leak not good, try some thread sealer like Pro dope :idea:
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Re: Can someone good help me ? please

Unread postAuthor: Haniball1337 » Tue Mar 26, 2019 10:15 am

I think i resolve that problem. What is better for qev , Ball valve or air compressor gun? Which allows me to have more power?
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Re: Can someone good help me ? please

Unread postAuthor: farcticox1 » Tue Mar 26, 2019 4:28 pm

Air gun will give you a ready made trigger :idea:
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Re: Can someone good help me ? please

Unread postAuthor: jackssmirkingrevenge » Wed Mar 27, 2019 4:58 am

Regardless of the pilot valve you chose, the best way to increase performance is to remove the dead space between the pilot valve and the QEV:

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hectmarr wrote:You have to make many weapons, because this field is long and short life
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