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The 1/4" destroyer

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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The 1/4" destroyer

Unread postAuthor: spudkpi » Thu Apr 08, 2010 9:43 pm

Well All I have really for you to see is the video because I don't reall have any pics of it yet. It is regulated co2 and without a barrel already packs a punch! All input needed! I ant this thing to run top of the line, you can tell from the gauge in the beginning that I am regulating it at about 300 psi. I'm nervous lol.... :?: I am not sure of the pressure that the tank will run out at but I would love for this gun to run at 600 psi, so we will just have to see... I'm waiting on the youtube to upload then ill post the link.


Ideally i would love to make a wooden stock and have this all put together in one stable machine... but I need your guys' help to get there! :idea:



http://www.youtube.com/watch?v=3uwbVY-pvq4


***EDIT- Would a pop-off valve make this semi auto for sure if I could find a way to properly feed the ammo?
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Attachments
0403000021 (Medium).jpg
This is the basic layout with before the co2 with the shock pump.
0405002012.jpg
This is the regulated co2 setup i have... the hose is from a filling station and it works really well in the video.
Last edited by spudkpi on Mon Apr 12, 2010 8:36 pm, edited 2 times in total.
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Unread postAuthor: Bluetooth » Thu Apr 08, 2010 10:14 pm

Looks nice! The video is still processing though, so I'll watch it later.
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Unread postAuthor: spudkpi » Thu Apr 08, 2010 10:18 pm

Yea damn youtube... it will be a col cannon because my ultimate hope is to be able to tun it at h.igh pressures and be sem-auto
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Unread postAuthor: c11man » Thu Apr 08, 2010 10:23 pm

it can handle high pressure, only problem might be that the blowgun starts to leak,

also how do you plan on going semi with this?
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Unread postAuthor: spudkpi » Thu Apr 08, 2010 10:26 pm

NOt sure about the semi auto yet.... thought about maybe a hammer valve.. this is where i need the forums help. Finally the video processed
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Unread postAuthor: POLAND_SPUD » Thu Apr 08, 2010 10:35 pm

so it does work properly... what was the problem with it ?

I find it hard to restrain from suggesting switching to a DCV :D
it might seem as a more complicated route as you can't get these things in a hardware shop but at least you could get something that is much stronger than a blowgun

so the two things that you can improve here is to reduce pilot volume and get a valve that can handle 600 psi... which is why I suggested getting a DCV

I guess you knew I was going to say it
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Unread postAuthor: chinnerz » Fri Apr 09, 2010 2:13 am

That is a nice system, and a nice camera might i add. Srsly though do you have an external mic on that sucker?
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Unread postAuthor: deathbyDWV » Fri Apr 09, 2010 8:24 am

Yeah I'm glad you got it working... What was wrong?
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Unread postAuthor: clemsonguy1125 » Fri Apr 09, 2010 10:52 am

spudkpi wrote:Yea damn youtube... it will be a col cannon because my ultimate hope is to be able to tun it at h.igh pressures and be sem-auto

Nice gun, glad you finally got it working afteer all those questions , by the way its not just you having a problem with youtube, it took me and hour to upload a 30 second video :P
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Unread postAuthor: spudkpi » Fri Apr 09, 2010 5:12 pm

Thanks for the input... keep it comin... I"m going to continue to mod this puppy solid!
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Unread postAuthor: clemsonguy1125 » Fri Apr 09, 2010 5:14 pm

Have you considered putting a stock on this
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Unread postAuthor: spudkpi » Sun Apr 11, 2010 2:39 pm

I have access to a lot f tools in my garage so I will be putting a nice wooden stock on here. I am just trying to figure out how to make it semi auto. Just got done pressure testing it at 500 psi with 0 leaks so I think once I get the barrel It will be ready to go. I might have to reconfigure the pilot setup so that the stock works well. I ill eventually add a bolt action breech as well but I need to configure the trigger/mount setup. If anyone has schematics for stocks or drawings or ideas it would be greatly appreciated.Thanks !
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Unread postAuthor: jackssmirkingrevenge » Sun Apr 11, 2010 2:48 pm

Spring loading the QEV piston should give you semi-auto easily, after that it should not be too difficult to add a barrel and magazine. What calibre did you have in mind?

As to stocks, you might want to consider buying a cheap airsoft gun and using the shell :)

Come to think of it, you'd also get a 6mm barrel and magazine, and for damage you could substitute airsoft BBs with these ;)
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Unread postAuthor: spudkpi » Sun Apr 11, 2010 2:49 pm

chinnerz wrote:That is a nice system, and a nice camera might i add. Srsly though do you have an external mic on that sucker?



Yeah man I just got it for Christmas.. its he Fujifilm pinepix 2000HD... Films video like a dream. Thanks
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Unread postAuthor: spudkpi » Sun Apr 11, 2010 2:50 pm

POLAND_SPUD wrote:so it does work properly... what was the problem with it ?

I find it hard to restrain from suggesting switching to a DCV :D
it might seem as a more complicated route as you can't get these things in a hardware shop but at least you could get something that is much stronger than a blowgun

so the two things that you can improve here is to reduce pilot volume and get a valve that can handle 600 psi... which is why I suggested getting a DCV

I guess you knew I was going to say it



Feel dumb saying it but whats a DCV?
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