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My Collection of Fun

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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Unread postAuthor: Temple » Mon Sep 19, 2011 7:27 am

Image

Just a couple of launchers, barrels and a copy of the ThunderpipeFX
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Unread postAuthor: jackssmirkingrevenge » Mon Sep 19, 2011 7:38 am

Nice, having built those though it seems you're now ready to move away from sprinkler valves and on to something more hardcore ;)
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Unread postAuthor: Temple » Mon Sep 19, 2011 7:43 am

I have thought about trying a different valve system, I need to do more research on here and educate myself some more.
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Unread postAuthor: CooperJS » Mon Sep 19, 2011 7:45 am

Nice, having built those though it seems you're now ready to move away from sprinkler valves and on to something more hardcore


I agree, but they are some really great looking launches :D
By the way what is that thing on the stand, looks like a pump or something
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Unread postAuthor: Temple » Mon Sep 19, 2011 7:49 am

The gold/black thing is a road side pump, the black and red thing behind it is a simple tire pump. the other thing with the sprinkler valve is the copy of the thunderpipe.
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Unread postAuthor: CooperJS » Mon Sep 19, 2011 8:00 am

nice loving it :D
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Unread postAuthor: jackssmirkingrevenge » Mon Sep 19, 2011 8:01 am

Temple wrote:I have thought about trying a different valve system, I need to do more research on here and educate myself some more.


You're clearly at home putting PVC parts together so a big bore piston valve coaxial is a very feasible project, using one of your sprinkler valves as a pilot. The difference in power compared to the low flow you're getting now will be a revelation.

The only tricky thing is making the piston itself, but there are several ways around it depending on the resources you have to hand.
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Unread postAuthor: jhalek90 » Mon Sep 19, 2011 9:29 am

For a piston in a 2'' coaxial chamber, a simple rubber cork can be used.

nothing like a 1 piece piston, made of solid rubber.

http://www.widgetco.com/10-rubber-stoppers-plugs
here you go, less than 3 bucks for 1.
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jackssmirkingrevenge wrote:I wonder... if you put flammable vapours inside a lady... could you get her to diesel?

POLAND_SPUD wrote:Anything is possible with the proper 3-way valve.
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Unread postAuthor: pneumaticcannons » Mon Sep 19, 2011 11:03 am

nice cannons, dont worry about messing up a piston valve. if you make yours easily accessible like i did, almost any mistake made during building can be fixed. (i made a some VERY big mistakes that I easily fixed.) :)
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Unread postAuthor: mattyzip77 » Mon Sep 19, 2011 7:18 pm

Or skip the piston valve and go for a big ass qev!!!
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Go Bruins!!!!
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Unread postAuthor: Temple » Mon Sep 19, 2011 7:36 pm

I understand the mechanics of a piston valve, I'm still trying to learn about qev's.

I've been away from launchers for a few years and you all are way ahead of what I am doing with launchers. I am WAY behind the learning curve :)
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Unread postAuthor: Technician1002 » Mon Sep 19, 2011 10:07 pm

I've never really understood the need for the really big dead space on the ThunderpipeFX. The sawdust cannon did not need that big dead space. For solvents, fumes can be an issue as well as liquid, so a thin burst disk can be used to protect the plastic parts from the solvent based effects if needed.

For the rest of the cannons, I see you too enjoy the benefit of a good barrel selection. I have very few single barrel size cannons remaining. The Dragon and Mouse Musket are out of comission. My 3 active cannons are the T shirt launcher, Marshmallow Cannon, and the ABS Test Cannon.
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Unread postAuthor: Temple » Tue Sep 20, 2011 7:11 am

I haven't fully tested the thunderpipe, yet. I have done some tests with water in my yard and it seems to work fine. I'm looking for a wide open spot to test it with a "diffrent' liquid, maybe milk, later this fall when it's a little cooler and more wet from rain.
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Last edited by Temple on Tue Sep 20, 2011 7:37 am, edited 1 time in total.

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Unread postAuthor: Technician1002 » Tue Sep 20, 2011 7:33 am

Temple wrote:I haven't fully tested the thunderpipe, yet. I have done some tests with water in my yard and it seems to work fine. I'm looking for a wide open spot to test it with a **censored** maybe later this fall when it's a little cooler and more wet from rain.


Maybe we should not discuss items for that launcher due to the SF rules. Stick with water, fake blood, dirt, flour, etc. I did not metion igniting anything, only protecting the plastic parts from solvents.
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Last edited by Technician1002 on Tue Sep 20, 2011 7:36 am, edited 1 time in total.
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Unread postAuthor: Temple » Tue Sep 20, 2011 7:35 am

That's the second time in as many days that I have had a rule infraction.

I'm really working on getting in trouble and only myself to blame.
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