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question

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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Unread postAuthor: colty-bear » Thu Jun 25, 2009 6:02 pm

ok i see the same but just turn the valve. but will that fitting work like that?
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Unread postAuthor: mark.f » Thu Jun 25, 2009 6:09 pm

Yup. I don't see where all this confusion is stemming from. :D

Here is the fitting on a 2.5" tennis ball barrel.

Here is a similar barrel and fitting on a Mauler valve cannon.

Buy your parts already. :wink:
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Unread postAuthor: colty-bear » Thu Jun 25, 2009 6:14 pm

thanks i was just getting mixed messages
:lol:
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Unread postAuthor: psycix » Fri Jun 26, 2009 2:15 pm

If you want to position a valve the way you posted, you would need to build a chamber-sealing piston valve.
As the mauler is a barrelsealer, it will have to be put on the other way.
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Unread postAuthor: mark.f » Fri Jun 26, 2009 2:22 pm

Thanks, we already got to that.

Don't confuse the poor lad further! :lol:
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Unread postAuthor: Willdebeers » Fri Jun 26, 2009 4:06 pm

You said turn the lever, combined with the chamber sealing, are you sure you are not looking at a Supah Valve?
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Unread postAuthor: MountainousDew » Fri Jun 26, 2009 4:23 pm

Nope, the Supah Valve doesn't port 2".
But Maulers do!
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Unread postAuthor: mark.f » Fri Jun 26, 2009 4:29 pm

MountainousDew wrote:Nope, the Supah Valve doesn't port 2".
But Maulers do!


You might want to check again. :wink:
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Unread postAuthor: MountainousDew » Fri Jun 26, 2009 4:34 pm

Oooopps!
Sorry, my bad!
I'm not sure how I made that mistake.
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Unread postAuthor: colty-bear » Tue Jun 30, 2009 7:30 pm

yea i just didn't look
i'm making a tennisball gun and im going to attach a push button vale from spudtech to the mauler( it dosn't matter if it is barrel sealing)


it has a brass tee the hose connected filling up the tank constantly and the button releases valve hose to tee pushes piston back. other end of hose directly fills up tank. clear pipe holds tennisballs.

diagram

Image

what i'm aiming for (lol)
sorry if blurry

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Unread postAuthor: Technician1002 » Tue Jun 30, 2009 7:39 pm

colty-bear wrote:what i'm aiming for (lol)
sorry if blurry

Image


Nice. What prevents launching balls out the feed hopper? On another thread I toyed with an anti-blowback device for gravity feed.

I'll try to find it and link to it later. It should work with tennis balls.

Edit; The gravity feed to prevent balls from blowing back out the feed hopper is on this page;
http://www.spudfiles.com/forums/mk-ii-qev-updated-16th-may-t17926,start,105.html
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Last edited by Technician1002 on Tue Jun 30, 2009 9:16 pm, edited 4 times in total.
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Unread postAuthor: colty-bear » Tue Jun 30, 2009 7:41 pm

yes im wondering if i have done my homework will it work or vill the air overcome the valve and not seal itself up.

i"m trying to make it semi-automatic
may not have mentioned that
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Unread postAuthor: Technician1002 » Tue Jun 30, 2009 7:55 pm

colty-bear wrote:yes im wondering if i have done my homework will it work or vill the air overcome the valve and not seal itself up.

i"m trying to make it semi-automatic
may not have mentioned that


The cannon in the picture does not appear to be using a piston. It is the wrong shape to contain one. It is most likely a butterfly valve at the breech of the barrel.
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Unread postAuthor: colty-bear » Tue Jun 30, 2009 7:57 pm

yea that gun does not contain a piston but the one i am building does. Does my diagram add up to make a semi-auto tennisball gun? (the diagram not the actual)
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Unread postAuthor: PVC Arsenal 17 » Tue Jun 30, 2009 9:13 pm

The fitting you seem to be looking for does exist.

Image

The very one I used can be purchased here.

2.5" barrel connected to a 2" threaded female socket.
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Last edited by PVC Arsenal 17 on Tue Jun 30, 2009 9:16 pm, edited 1 time in total.

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