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3-D supah valve cannon

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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3-D supah valve cannon

Unread postAuthor: tntlly » Wed Oct 25, 2006 3:11 am

I was bored in the last half hour so I drew this up, just thought I'd share...
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Unread postAuthor: killagorrila99 » Wed Oct 25, 2006 4:01 am

Yea its alright. Are you planning on making it?
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Unread postAuthor: experament_u2 » Wed Oct 25, 2006 6:35 am

very nice did u use rhino to make that
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Unread postAuthor: POS » Wed Oct 25, 2006 8:56 am

nice drawing. The elbow should be thicker though, it chokes the airflow. Chamber sealing isnt it ?
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Unread postAuthor: SpudStuff » Wed Oct 25, 2006 10:21 am

Nice, it is setup as a chamber sealer in that rendering.
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Unread postAuthor: sgort87 » Wed Oct 25, 2006 12:44 pm

That's because it IS a chamber sealer.

It looks like you plan to use a DWV elbow there. I wouldn't

All this time spent on drawing crap... It's a nice picture but I like to just build it and take pictures after. The only things I draw out are valve diagrams or other complex cannon parts so I have everything sized perfectly and can use it as a quick reference.
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Unread postAuthor: tntlly » Wed Oct 25, 2006 2:05 pm

I'd like to build it but I don't have 100 bucks to spare for a valve. Also, if i were to build it I'd use pressure rated pieces. This is just something I made in rhino because I was bored.
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Unread postAuthor: POS » Wed Oct 25, 2006 2:16 pm

I just figured out, according to the prices of a dutch site. If I wanne make a over-under with a chamber of 75 mm (3inch) and a valve of 75 mm, a barrel of 63 or 50 mm, i have to pay for pressure PVC of 10 bar (140 psi) only 56 euro for al the parts needed. The pipes come in lenghts of 5 meter, so I have enough to make 2 or 3 guns for less than 100 euro.

Only thing, I need to drive 92 km to get it :?

@ Brain teh Brain, the shop I am talking about is http://www.tuinberegening.nl/. You gave me a link the other day to an other shop in Nederland, but the prices there are almost double as in this shop. I dont know where you live, but this one is close to Tilburg. Much closer for me. They also sell sprinkler valves, called "magneetkleppen", but they operate on 24 AC :( . Good thing is that they cost obly 29 euro.

Should find one for DC though, so i could use a battery.
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Unread postAuthor: kyle1292 » Sun Nov 12, 2006 6:50 pm

wiat do u fill supah valve cannons through the blowgun or a shrader valve? :?
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Unread postAuthor: SquishY » Sun Nov 12, 2006 7:04 pm

There would be a QD to fill it via and air compressor, a schrader could be used but with big chamers it takes Forever, I fill a 4"x36" chamber with an emergency pump and it takes a good 10 or 15 minutes...
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Unread postAuthor: kyle1292 » Sun Nov 12, 2006 7:13 pm

but would it be on the blowgun or the tank?
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Unread postAuthor: SquishY » Sun Nov 12, 2006 7:34 pm

On the cap which the blowgun hose is attached to, like a Tee or so, a piston must be pressurized from behind or it will not actuate w/out a spring and springs can reduce performance. So it will be on neither the air gun or the chamber, it will be on the valve.
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Unread postAuthor: kyle1292 » Sun Nov 12, 2006 7:59 pm

o0o0o i think i get it now thx :)
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