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Blowforward popoff valve concept

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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Blowforward popoff valve concept

Unread postAuthor: bookyle » Wed Mar 07, 2012 6:15 pm

Hi everyone. This is just something that occurred to me while I was day dreaming.

It kind of combines this

http://www.spudfiles.com/forums/rattles ... 17995.html

with this

http://www.spudfiles.com/forums/6mm-sem ... 10075.html

to make a full auto blowforward valve

If this have been posted before, sorry, I didn't search thoroughly enough
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Blowforward popoff.png
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Unread postAuthor: warhead052 » Wed Mar 07, 2012 10:37 pm

Could be an interesting project. Maybe we could convince JSR to attempt it?
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Unread postAuthor: jackssmirkingrevenge » Wed Mar 07, 2012 11:20 pm

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Unread postAuthor: killerbanjo » Thu Mar 08, 2012 3:30 am

Thats not quite the same man, this one uses the steped design that you use on you rattle snake pop off so i think it would work, the only thing is when a pop off valve moves, it only moves very little.
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Unread postAuthor: jackssmirkingrevenge » Thu Mar 08, 2012 3:38 am

killerbanjo wrote:the only thing is when a pop off valve moves, it only moves very little.


This is the reason why I added the green shut-off valve, the idea is that the bolt can be made airtight enough to ensure it blows forward far enough, without encountering problems from incoming air on the return stroke.

this one uses the steped design that you use on you rattle snake pop off


Umm... and mine doesn't? ;)
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Unread postAuthor: bookyle » Sun Mar 11, 2012 11:44 am

Oh, sorry JSR, didn't see that thread.

But you have to admit, this is easier to make
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Unread postAuthor: jackssmirkingrevenge » Mon Mar 12, 2012 7:21 am

bookyle wrote:But you have to admit, this is easier to make


The question is, will it work ;) as mentioned previously, getting the bolt to blow forward enough is an issue, and also consider the air that will be lost until the bolt seals, it would be quite wasteful in practice.
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