homemade semi auto

Building or modifying BB, Airsoft, and Pellet type of guns. Show off your custom designs, find tips and other discussion. Target practice only!
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lklaussen
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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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jackssmirkingrevenge
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Wed Dec 14, 2011 2:59 pm

http://www.spudfiles.com/forums/6mm-mag ... 21684.html
hectmarr wrote:You have to make many weapons, because this field is long and short life
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lklaussen
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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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evanmcorleytv
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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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Lockednloaded
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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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Goats spudz
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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?
Where's my Chuck key?
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Gun Freak
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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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lklaussen
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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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Gun Freak
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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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lklaussen
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Wed Dec 14, 2011 6:26 pm

Yes, but can you do semi automatic with it?
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Gun Freak
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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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lklaussen
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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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jackssmirkingrevenge
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Wed Dec 14, 2011 11:28 pm

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

[youtube][/youtube]
lklaussen wrote:Grades :roll:
You can build potentially lethal weapons, but only if you study!
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hectmarr wrote:You have to make many weapons, because this field is long and short life
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Crna Legija
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Thu Dec 15, 2011 12:41 am

lklaussen wrote:How would it be done?
Image
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wyz2285
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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][/youtube]
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