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I need help with a design

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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I need help with a design

Unread postAuthor: archie370 » Fri May 11, 2012 8:14 pm

I want to build an air gun that has a short pop of air so i can have multiple shots so 5 - 7 shots before refilling and im not sure how the airgun actually works, because my understanding of a QEV valve is that it lets all of the air chamber out at once and i want multiple shots like this video underneath this

http://www.youtube.com/watch?v=pyG6SUS6ggE&feature=plcp

Edit by Moderator: No need to yell in the topic title.
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Unread postAuthor: sagthegreat » Fri May 11, 2012 8:20 pm

You can make if so the pilot only opens for a. Split of a second. YouTube wyzxz. He has a food mech
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Unread postAuthor: archie370 » Fri May 11, 2012 8:26 pm

but when you push the pilot and keep pushing it wont all your air run out ? and Food mech?
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Unread postAuthor: pneumaticcannons » Fri May 11, 2012 8:30 pm

In order to construct that gun you must first pour exactly 2.6 liters of cement into a bucket. Drill a hole through this cement and know you have completed chamber. Super glue a rifled, 50 cal barrel on and don't forget a valve. your almost done. Fill with argon and click finish.
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Unread postAuthor: Crna Legija » Fri May 11, 2012 8:43 pm

With the mighty power of research!!!!
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Unread postAuthor: archie370 » Fri May 11, 2012 8:49 pm

IF that was mean't to be funny it wasn't... does anyone want to help me or not ?
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Unread postAuthor: mattyzip77 » Fri May 11, 2012 8:57 pm

Theres a link at the beginning of the video you posted, did you watch it?? You need to do some research for yourself here at spudfiles. We dont like to spoon feed! At least make a little effort and I'm sure someone will help. Good luck!!
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Unread postAuthor: dahakka » Fri May 11, 2012 8:58 pm

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Unread postAuthor: archie370 » Fri May 11, 2012 9:04 pm

Thanks mattyzip i know ive seen your comments on other threads im just having a hard time getting my head around this concept and thanks for links dahakka i did ask him but he sent me the semi automatic vid and that was not what i asked so im on spudfiles looking for some plans or an idea ... oh and i did have a look at the link at the start of the video... but no help
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Unread postAuthor: dahakka » Fri May 11, 2012 9:16 pm

you don't understand how qev work
or how it .. semi auto?
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Unread postAuthor: archie370 » Fri May 11, 2012 10:08 pm

i know how a QEV valve works right and the piston valve and the pilot because of wyz2285 but im wondering when you press the pilot valve does it keep letting air out if you hold you finger there because im trying to figure out the trigger system as well thanks bud for posting :D
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Unread postAuthor: dahakka » Sat May 12, 2012 3:06 am

http://www.spudfiles.com/forums/almost- ... 24052.html
this is mine , read the comments , they talk a bout how it work
And i remember some one said (JSR, maybe) with small ammo ,bb , no difference when you use qev, hammer valve , or this thing http://www.spudfiles.com/forums/single- ... 22502.html
:lol: :lol:
but hammer valve is best
you can find some amazing hammervalve guns in this forum
have fun
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Unread postAuthor: MrCrowley » Sat May 12, 2012 3:47 am

archie370 wrote:IF that was mean't to be funny it wasn't... does anyone want to help me or not ?
While we are here to help we are not here to be your searching slave or spoonfeed you. If it is apparent that you have done some research and are willing to put in a bit of time and effort to try and understand things, we will happily help you. If you come here demanding blueprints to designs without bothering to try and understand things, we may decide not to help you. It's up to the individual member.

I suggest you adjust your attitude. It does seem as if you know partially what you're talking about, you just lack a bit of experience with the designs in question. Going through topics in the pneumatic showcase section is a good idea and will help you understand the fundamentals of valve designs; you don't need to actually have a QEV to know how they will work or how to make one work semi-auto. There are a few recent designs involving slide valves that will help you out.

If you want multiple shots from a chamber without refilling, I suggest you look in to hammer valves.

In case you've been using the 'quick search' (which is hopeless) instead of the advanced search, I'll link it here for you:
http://www.spudfiles.com/forums/search.html
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Unread postAuthor: wyz2285 » Sat May 12, 2012 4:42 am

GOD DAMN IT :evil:
What was you expecting?? A detailed tutorial plus scaled blueprint?? I HAVE MY LIFE TOO.
You think you only need a plan, you need MORE than that. With you experience, you won´t be able to build it, even if you have the plan and parts.
You are not the first who tried to make a replica of that gun. But I haven´t seen anybody that was able to make it, and most of them are more experienced than you.
Help a newbie to even a slight advanced level is difficult in real life, there is noway to do it just by messages.
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Unread postAuthor: archie370 » Sat May 12, 2012 8:19 am

Wyz2285 read my last comments and all of the rest, i was complementing you dude i was just wondering one little thing everyone just take a chill pill i dont want to be spoon fed i want to get some enjoyment out of making this project as well i dont want to make it and ... should i take a screen shot of how many tabs i have open researching this i counted 12 and thats just today ....
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