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"El Duelce" T-Shirt Launcher

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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"El Duelce" T-Shirt Launcher

Unread postAuthor: patton » Sun Nov 04, 2007 12:45 am

After i had made my first t-shirt launcher i was not ready to call it quits yet so i re-designed my new cannon around the larger 2" piston valve. here are some pictures and i will post some more tomorrow
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Last edited by patton on Wed Nov 07, 2007 11:34 pm, edited 3 times in total.
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Unread postAuthor: Zen/// » Sun Nov 04, 2007 12:51 am

wow, that gun sure is cool, i really like [insert good thing here], but i think you should change[insert bad thing here]. oh, [insert transition] i was just wondering how [ insert question here]

Lawl, nice.
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Unread postAuthor: hi » Sun Nov 04, 2007 12:56 am

Zen/// wrote:wow, that gun sure is cool, i really like [insert good thing here], but i think you should change[insert bad thing here]. oh, [insert transition] i was just wondering how [ insert question here]

Lawl, nice.


that made me laugh.

what he was trying to say is that its a good looking gun and you did a very good job on it...
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"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

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Unread postAuthor: Thursto » Sun Nov 04, 2007 1:01 am

I See DWV Fittings :shock: does any of those DWV fittings hold pressure when you use it? it seems like it would. Overall hats a nice looking cannon, i wouldnt wann get shot with a T-shirt from a close range!!:P

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Unread postAuthor: hi » Sun Nov 04, 2007 1:04 am

i wouldnt worry about the DWV because it is after the valve, so the only time it is pressurized with when you accually fire it. i honestly wouldnt worry about it.
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"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
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Unread postAuthor: MrCrowley » Sun Nov 04, 2007 1:45 am

Just replace the DWV fittings (the 90* elbow above the valve btw)
It's all threaded so you'll only loose a few bucks.
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Unread postAuthor: Ragnarok » Sun Nov 04, 2007 8:19 am

Is the Bell reducer not also DWV?

In spite of the few flaws, that's still very nice.
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Unread postAuthor: unisonmind » Sun Nov 04, 2007 9:09 am

it looks like the couplings are DWV and if your couplings DWV your bushings are DWV as well cuz they fit all the way in the couplings i could be wrong but from the pics the sockets look real shallow
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Unread postAuthor: HaiThar » Sun Nov 04, 2007 9:47 am

unisonmind wrote:it looks like the couplings are DWV and if your couplings DWV your bushings are DWV as well cuz they fit all the way in the couplings i could be wrong but from the pics the sockets look real shallow


I don't think his couplings are DWV, and I've never seen a DWV bushing... =\
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Kthx, BAI
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Unread postAuthor: ShowNoMercy » Sun Nov 04, 2007 10:12 am

Is that a Supah valve or your own creation?
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Unread postAuthor: noname » Sun Nov 04, 2007 10:34 am

Unsafe fittings, DWV or not. On the chamber, look on the far right. I thought it was just the square on cleanout caps, but instead it's a bushing that isn't cemented in all the way.
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Unread postAuthor: LikimysCrotchus5 » Sun Nov 04, 2007 11:15 am

YAY! you learned how to post pics...... Thanks to me :D ok well, i guess its pretty nice except for the fact that there is a bell reducer but just remember to look at the pipe and and fittingd to see if they say NSF pw then you will know for sure its meant for pressure. I think you could make the barrel longer too. But first i you would have to salvage parts and remake that cannon.
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Unread postAuthor: patton » Sun Nov 04, 2007 10:31 pm

Yes it is a supah vavle and no i would not want to be shot by it either. I have kept all of my shots under 75 psi so far and am a little worried to hear about this DWV stuff. I do not have time to rebuild yet because the cannon is needed to shoot someone at a pep-rally. am i in danger of the chamber blowing up and if you have any other tips please tell. And if you tell me that i need certain pieces please also tell me where i could get them.
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Unread postAuthor: patton » Sun Nov 04, 2007 10:39 pm

also as far as the bushings go they are all the way in that the bushing would allow. And by the bell reducer are you all talking about the 2" to 3" reducer on the barrel. Becuase i have found that this generates greater distance than a simple bushing. The barrel length is dicated by how far i could push the t-shirt in with my hand.
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Unread postAuthor: Ragnarok » Sun Nov 04, 2007 10:41 pm

The chamber is completely fine as far as I can tell, but I'd personally replace the barrel fittings.
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