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automatic water balloon launcher?

Posted: Thu Dec 14, 2006 3:45 am
by patar_the_great
I NEED IDEAS!!!! the only thing I have to go on is either a chain or ferris wheel clip

Posted: Thu Dec 14, 2006 7:38 am
by Soaker Leader
Sure you can do that but how will you pressurize it so fast to make it "automatic"?

-SL

Posted: Thu Dec 14, 2006 10:47 am
by joannaardway
A regulated CO2 supply could do it.

I suggest you check out one of these sites (and especially the forums on both):

http://www.Spudtech.com
http://www.spudfiles.com

They specialise in all kinds of air cannons, including automatic ones.

However, few people I know of to date, have ever designed a feed mechanism that will load a water balloon without shredding it. Automating them shouldn't be impossible.

One of them is Boogieman (although that is a combustion based launcher): http://www.advancedspuds.com/revolverx.htm
Another one is Ragnarok (my twin brother) - his design is a pump action one, but it's yet to be completed.

Posted: Thu Dec 14, 2006 9:24 pm
by Silence
The problem is that you need sabots for each water balloon. You'll want to have a supply that can easily be renewed, and you should also note that a regulator won't keep up with the flow of air out the barrel.

Posted: Fri Dec 15, 2006 5:18 am
by Hunt_and_Annoy
Oh god not this again. I wish you best of luck, but warn you that this is not an easy feat.

Posted: Fri Dec 15, 2006 7:43 pm
by patar_the_great
is there any way to do it with a spring and plunger?

p.s. thank you joannaardway for that link to the revolver x

EDIT by SilentGuy: I merged your two posts. Usually, it's best to just edit an old post instead of double-posting when there's something you just remembered to say. The exception is after a day or two on a project or something, when another post will show people that something major has been updated. Thanks.

Posted: Tue Dec 19, 2006 3:29 am
by patar_the_great
Does anyone have any ideas for a chain fed design? If so email me at patar_the_great@hotmail.com

Posted: Tue Dec 19, 2006 6:01 am
by Hunt_and_Annoy
patar_the_great wrote:is there any way to do it with a spring and plunger?


Yes. You'd still need sabots for the water balloons, but if you have time, money, a really strong motor, lots of space, and vast amounts of patience, it'd just be like building a giant airsoft AEG.

EDIT: Another thought, if you use co2, you might be able to use the action from a paintball gun, or a homemade thing much like it but bigger.

EDIT2: Here's a link explaining how an AEG works. You'd need to make your own, much bigger version of this, which I say again would be a pain.
http://www.icsbb.com/news/e_news_main.asp?id=41

Posted: Tue Dec 19, 2006 6:34 pm
by Silence
A plunger method is near impossible. You would need an incredibly strong spring, likely one that would match the force of a charged SuperCannon II. And also, remember that throwing a balloon by hand is incredibly efficient.

An AEG is far too different, and they can obtain decent performance because everything is small. Pneumatic, on the other hand, is generally better for all sorts of applications. Note that even paintball guns don't use springs. But back on topic, no it is not practical to use a spring.

Posted: Tue Dec 19, 2006 9:12 pm
by Hunt_and_Annoy
I said an AEG type thing would be a best bet for plunger and spring, it would by no means be easy. I agree that pneumatic is easier and probably a lot better.

Posted: Wed Dec 20, 2006 9:01 am
by joannaardway
Talking about belt or chain feed:

http://www.neospud.com/cannons.html

Go down the page, click on CylBelt. It's not a very complete page, but it shows part of the concept.

It's probably totally beyond most people though. I'd struggle, and I'm an experienced cannon builder. I'd probably have help from my brother as well, and he's really experienced (he's built over 20 launchers of different types)

I had a full-auto design once, but my brother got hold of it, and as is typical with him, he looks at it, and somehow makes it 20 times better.

Posted: Wed Dec 20, 2006 7:00 pm
by Hunt_and_Annoy
I had no idea anyone had actually succeeded at something like this, nice find.

Posted: Thu Dec 21, 2006 11:23 pm
by joannaardway
There are hundreds of automatic cannons out there. Most of them use golf balls, paintballs or BB pellets though.

Auto-loading balloons is a challenge.