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homemade semi auto

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homemade semi auto

Unread postAuthor: lklaussen » Wed Dec 14, 2011 2:57 pm

So my parents aren't letting me get a qev valve, so what are some alternative forms for semi auto firing for airsofts?
Thanks in advance![/list]
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Unread postAuthor: jackssmirkingrevenge » Wed Dec 14, 2011 2:59 pm

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Unread postAuthor: lklaussen » Wed Dec 14, 2011 4:49 pm

Ok that's awesome, but is there any way to make a quick exhaust valve ?
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Unread postAuthor: evanmcorleytv » Wed Dec 14, 2011 5:14 pm

Yeah, but they are less efficient for airsoft, not to mention that they cost WAY more to make.. Why won't you parents let you?
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Unread postAuthor: Lockednloaded » Wed Dec 14, 2011 5:45 pm

evanmcorleytv wrote:Yeah, but they are less efficient for airsoft, not to mention that they cost WAY more to make.. Why won't you parents let you?


Neither of those are necessarily true... A well made piston valve can perform much better then a QEV, and valves can be made from some epoxy, tubing, and rubber
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Re: homemade semi auto

Unread postAuthor: Goats spudz » Wed Dec 14, 2011 5:59 pm

lklaussen wrote:So my parents aren't letting me get a qev valve, so what are some alternative forms for semi auto firing for airsofts?
Thanks in advance![/list]
why wont they let you get a QEV?
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Unread postAuthor: Gun Freak » Wed Dec 14, 2011 6:05 pm

A coaxial piston valve only costs a few bucks for rubber and epoxy. Because technically the rest of the parts aren't the valve. Coaxials are cheap and simple!
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Unread postAuthor: lklaussen » Wed Dec 14, 2011 6:05 pm

Grades :roll:

Even if they are harder and don' cost as little, how are they made?
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Unread postAuthor: Gun Freak » Wed Dec 14, 2011 6:25 pm

Look at the showcase. It's just a piston valve with the barrel in the chamber.
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Unread postAuthor: lklaussen » Wed Dec 14, 2011 6:26 pm

Yes, but can you do semi automatic with it?
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Unread postAuthor: Gun Freak » Wed Dec 14, 2011 6:28 pm

With a constant air source yes. On a single charge, difficult and you need high pressure. wyz2285 did it.
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Unread postAuthor: lklaussen » Wed Dec 14, 2011 8:00 pm

How would it be done? would there be an air in and a separate pilot valve?
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Unread postAuthor: jackssmirkingrevenge » Wed Dec 14, 2011 11:28 pm

my own experiences: http://www.spudfiles.com/forums/new-jsr ... 20075.html

[youtube]http://www.youtube.com/watch?v=xKq4ktpplMA[/youtube]

lklaussen wrote:Grades :roll:


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Unread postAuthor: Crna Legija » Thu Dec 15, 2011 12:41 am

lklaussen wrote:How would it be done?


Image
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Unread postAuthor: wyz2285 » Thu Dec 15, 2011 6:37 am

On a single charge, difficult and you need high pressure

Not necessarlly :wink:
I used to use 100 psi only, and I got 5 shots out of it :)
But then I added a bigger chamber, and higher pressure :D
[youtube]http://www.youtube.com/watch?v=pyG6SUS6ggE&list=UUOv1720IFInlmbjVF1IDbAw&index=4&feature=plcp[/youtube]
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