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all purpose spud gun?

A place to ask general spud cannon related questions.
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all purpose spud gun?

Unread postAuthor: pyromanic13 » Sun Dec 10, 2006 11:32 pm

anyone ever made one? as in a hybrid/combustion/Pneumatic (has a valve)

just wondering?
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Unread postAuthor: frankrede » Mon Dec 11, 2006 12:27 am

hybrid can be used for pneumatic and combustion, just pop in a burst disk and pressurize, or use it with just propane or do a hybrid mixture.
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Unread postAuthor: pyromanic13 » Mon Dec 11, 2006 12:33 am

ya, but I meant a pneumatic as in "has a valve"
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Unread postAuthor: joannaardway » Mon Dec 11, 2006 6:41 am

I would consider a burst disc a valve.

But, a piston valve type design could do all of them if you wanted...
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Unread postAuthor: benstern » Mon Dec 11, 2006 5:04 pm

if you had an ball valved tee you could attach a second barrel a valve.
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Unread postAuthor: frankrede » Mon Dec 11, 2006 11:16 pm

pyromanic13 wrote:ya, but I meant a pneumatic as in "has a valve"
Well you could add a ball valve in front of the union and have it open for when you use if for combustion/hybrid and use it only when you use it for a valve?
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Unread postAuthor: pyromanic13 » Mon Dec 11, 2006 11:34 pm

I'm thinking of makeing a gun like this but I'm afraid I'd forget to turn the valve open and it's blow up...
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Unread postAuthor: frankrede » Tue Dec 12, 2006 12:19 am

You could make a hybrid that uses a sprinkler valve, I believe someone made one once. You would have to worry about the valve timing and the diaghpram melting though.
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Unread postAuthor: killagorrila99 » Tue Dec 12, 2006 1:06 am

Try this.
The 1 inch sprinkler valve is modded with a 1/4 union with burst disks loaded. When the ignition sequence is reached, the disk ruptures and accuates the valve.
<center>
<img src="http://i141.photobucket.com/albums/r46/killagorrila99/hybridvalve.jpg" alt="Photobucket - Video and Image Hosting"><br><br>
</center>
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Unread postAuthor: experament_u2 » Tue Dec 12, 2006 1:18 am

thats acsally rely smart killa i would of never thourght of it :cry:
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Unread postAuthor: killagorrila99 » Tue Dec 12, 2006 1:20 am

And thats why I am the spud jesus 8)
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Unread postAuthor: Pete Zaria » Tue Dec 12, 2006 3:15 am

Of course a sprinkler valve couldn't handle the pressure from a hybrid mixture over 1.5x or so... but you could use the same "burst-disk-for-pilot-valve" idea with a piston. Assuming the lag time wasn't bad, and the pipe/fittings were rated high enough, I don't see why it wouldn't work... I'd love to see someone try it.


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