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Could you make a combustion cannon out of cardboard tubing?

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Should i try this?

Yeah go for it!
4
50%
Yeah, but don't blame me if you die
2
25%
Nah
1
13%
No, and if you die i write told ya so on your grave
1
13%
 
Total votes : 8
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Could you make a combustion cannon out of cardboard tubing?

Unread postAuthor: athoul » Tue Jul 03, 2007 5:26 pm

I have about 1ft of 4mm thick 85mm cardboard tubing and about 2 and 1/2 ft of 1mm thick 50mm tubing.

Do you rekon i would be able to make a combustion cannon out of this or do you rekon its to weak, to be honest i don't give a damn if it breaks because its not like i'm going to get carboard shrapnel in my hand :lol:

The main problem i am facing is how to attach the barrel to the chamber and how to make a cap for the end of the chamber...
Anybody got any ideas?

Here are a few pics showing what im working with:

Image

Image


Rich
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Unread postAuthor: schismatized » Tue Jul 03, 2007 5:31 pm

If its any good itll only be strong enough for a few shots i would guess, then it would fall apart. in my experience, cardboard doesnt like flame.
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Unread postAuthor: Hotwired » Tue Jul 03, 2007 5:44 pm

Well firework tubes are made of cardboard.

Low power combustion shouldn't do anything much to thick cardboard tubing considering some of the random crap other people have made combustions with but just don't try to make a pneumatic with it.

Any kind of strong glue should work as long as you have a decent surface area to glue together. You'd need something to bulk out the size of the barrel to fit in the chamber...

A wooden plug and a wooden bushing could work. As the wood is porous it will bond to the cardboard pretty well.

Use remote ignition and don't let it get wet (no potatos) :wink:
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Unread postAuthor: athoul » Tue Jul 03, 2007 5:49 pm

Hotwired wrote:You'd need something to bulk out the size of the barrel to fit in the chamber...

..Use remote ignition and don't let it get wet (no potatos) :wink:


Could you explain the bulking out the barrel in a bit more detail with a diagram if you can be bothered :D

Nah, can't be bothered with remote ignition will just take the risk even if it does disintegrates it wouldn't do me too much damage.

Thanks for the advice
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Unread postAuthor: potatoflinger » Tue Jul 03, 2007 5:49 pm

That might not be thick enough, but if you want to you could go to just about any carpet store, and I bet that they would be glad to give you some carpet roll tubes for free. They are a little bit thicker than what you have, but what you have might work.
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Unread postAuthor: pyromaniac » Tue Jul 03, 2007 5:50 pm

I dont see why not flying salt made one out of a tisso(sp?) box.
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Unread postAuthor: athoul » Tue Jul 03, 2007 5:56 pm

pyromaniac wrote:I dont see why not flying salt made one out of a tisso(sp?) box.


Oh yeah thats very true :lol:

I'm still not sure how to go about attaching the barrel and combustion chamber together :?:
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Unread postAuthor: VH_man » Tue Jul 03, 2007 5:56 pm

how to attatch the barrel to the chamber:

get a roll of duct tape. start wrapping one end of the barrel peice in tape untill the bottom is wide enough to fit tightly inside the chamber peice. apply superglue and enjoy....

and im not kidding. thats how i made the barrel sheath on the barret 14mm, and how i made multiple mini's. heck i even did that for an airsoft gun silencer......................

for the endcap, i dont really know.... sorry.........
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Unread postAuthor: athoul » Tue Jul 03, 2007 5:59 pm

VH_man wrote:how to attatch the barrel to the chamber:

get a roll of duct tape. start wrapping one end of the barrel peice in tape untill the bottom is wide enough to fit tightly inside the chamber peice. apply superglue and enjoy......


Wow that is a bloody amazing idea!
Thanks!
Got that bit solved now, just gotta work out how to do the end cap now... hmmmmmm.....
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Unread postAuthor: paaiyan » Tue Jul 03, 2007 6:01 pm

Hotwired wrote:Well firework tubes are made of cardboard.

Low power combustion shouldn't do anything much to thick cardboard tubing considering some of the random crap other people have made combustions with but just don't try to make a pneumatic with it.

Any kind of strong glue should work as long as you have a decent surface area to glue together. You'd need something to bulk out the size of the barrel to fit in the chamber...

A wooden plug and a wooden bushing could work. As the wood is porous it will bond to the cardboard pretty well.

Use remote ignition and don't let it get wet (no potatos) :wink:


Some are made of catdboard, the stuff I shoot off is fiberglass. Cardboard isn't too strong.
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Unread postAuthor: Gepard » Tue Jul 03, 2007 6:16 pm

Hotwired wrote:Well firework tubes are made of cardboard.<snip>


But doesn't that cardboard (generally speaking) get blown into a million pieces when the firework goes bang?

Michael
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Unread postAuthor: athoul » Tue Jul 03, 2007 6:19 pm

They don't explode into millions of peices because after bonfire night or whenever everyone has fireworks you can walk down the road and find all the empty cardboard tubes with the wooden sticks on them :P
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Unread postAuthor: Gepard » Tue Jul 03, 2007 6:24 pm

That's why I said generally speaking.

I'd imagine most though blow up....

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Unread postAuthor: paaiyan » Tue Jul 03, 2007 6:27 pm

I'm gonna give you the almighty answer to every question... It depends. Some cardboard parts are made to disentegrate, some are made to stay together for a while. It all depends on what its' made for. You can't just ask if cardboard will work, most people will think cardboard box type cardboard. I think the stuff they use for the fireworks tubes is 4 mm-ish.
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Unread postAuthor: athoul » Tue Jul 03, 2007 6:31 pm

Yeah, this stuff is really damn strong, if its laid down i can stand on it (60kg) and it doesnt break or even bend, lol
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