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Pneuest Pneumatic

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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Pneuest Pneumatic

Unread postAuthor: tmacd995 » Sun Mar 02, 2008 10:06 pm

So after I'd changed out all the DWV fittings on my 3" Barreled Pneumatic, it failed miserably. The 1" Valve was way to restricting. So, tonight I pushed the piston to the back burner and used some scrap fittings and pipe to build this. This is my first modded valve and I threaded a female quick connect onto the valve top. That will let use only one blowgun on several different guns (not at the same time). I also threaded a quick connect to the endcap rather than a schraeder valve, that will reduce the fill time and allow me to keep it hooked up to my framing compressor. Turning that ball valve will cut the flow from the compressor. I already have some over/unders with this chamber to barrel ratio but I am hoping the modded valve will give me a boost in performance. Even if it doesn't I am counting the new air inlet as a win.
Thanks for looking,
Thomas
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Attachments
IMG_1392.jpg
The cap with quick connect
IMG_1394.jpg
The whole thing
IMG_1395.jpg
The little part that got cropped on 1394
IMG_1396.jpg
Modded Sprinkler valve with quick connect
IMG_1397.jpg
Blowgun unattached

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Unread postAuthor: TheTrooper » Sun Mar 02, 2008 10:17 pm

Very nice, no DWV. I dont think i've ever seen someone use a quick-disconnect on their sprinkler before but as long as it works its fine. Why at the end does the pipe make a 90* angle? Couldn't it just keep going straight. But anyway it looks good and the modded sprinkler should really boost performance.
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Unread postAuthor: bigbob12345 » Sun Mar 02, 2008 10:17 pm

Thats a pretty nice gun.
Chambers a little overkill but thats a good thing if you have a big enough compressor.
The 1in valve slightly constrics flow in this but not enough that it would be worth it to replace it with a 1.5in or 2in one.
How is the power?
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Unread postAuthor: f.c » Mon Mar 03, 2008 2:08 am

thats one huge gun. not very portable i take it.
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can i be a sasquatch ?
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Unread postAuthor: OuchProgramme » Mon Mar 03, 2008 8:27 pm

Why a quick connect may i ask?
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Unread postAuthor: tmacd995 » Mon Mar 03, 2008 8:52 pm

1)The power is better than my over under with an unmodded sprinkler valve. (Same barrel and chamber size)

2)Its actually pretty manageable, but my compressor has wheels and I have about 200 feet of hose

3)The quick connect on the chamber lets me just hook up to a compressor and flick the ball valve when pressurized, much less fuss than a schrader

4)The quick connect on the sprinkler valve lets me use one blowgun on several different launcher, since blowguns are about $5 and I can only shoot one at a time anyways
-Thomas
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Unread postAuthor: OuchProgramme » Mon Mar 03, 2008 9:32 pm

tmacd995 wrote:
4)The quick connect on the sprinkler valve lets me use one blowgun on several different launcher, since blowguns are about $5 and I can only shoot one at a time anyways
-Thomas


Ahhh. Saving money :).
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Unread postAuthor: sjog » Mon Mar 03, 2008 10:00 pm

quick connects are 4.00$
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Unread postAuthor: bigbob12345 » Mon Mar 03, 2008 10:02 pm

Blowguns are $5.00 :D
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Unread postAuthor: Hubb » Mon Mar 03, 2008 10:25 pm

quick connects are 4.00$


Blowguns are $5.00


A good performing, giant pneumatic....priceless. :D
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Unread postAuthor: tmacd995 » Mon Mar 03, 2008 10:44 pm

Amen!
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Unread postAuthor: spud=fun » Sun Mar 16, 2008 9:28 pm

nice gun, long gun tho also :? you should use a 180 and fold the chamber back on itself bet it packs a hell of a punch tho
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