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Thick Needle through Quarter?!?

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Thick Needle through Quarter?!?

Unread postAuthor: CannonCreator » Thu Sep 13, 2007 2:36 am

[youtube]http://www.youtube.com/watch?v=ram29hupTrc[/youtube]



Check this out guys. I do not know who this kid is or anything, lame music, but cheack out what he did with his pneuy cannon. Really went throguh quarter? or glued to both sides?
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Unread postAuthor: Hubb » Thu Sep 13, 2007 2:42 am

I will call the BS on this one. Nice looking cannon but with a ball valve and a blowgun dart? No way.
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Unread postAuthor: MrCrowley » Thu Sep 13, 2007 3:01 am

I don't see that happening, DWV cannon as well. A quarter is just too strong, I can see a quarter getting bent or dented but not penetrated.
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Unread postAuthor: jackssmirkingrevenge » Thu Sep 13, 2007 3:04 am

A length of wire has an extremely high sectional density and small impact area, that sort of penetration is more than possible if it's travelling fast enough. Look what the mythbusters did in the deadly straw episode when they fired a length of piano wire straight through a tree, the ply backing and into the cement wall.

Granted, their barrel was much longer than the one in this case, and what doesn't seem right is the fact that the dart shown through the quarter is perfectly straight, I would expect a lot of deformation dpeending on what it's made of.
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Unread postAuthor: MrCrowley » Thu Sep 13, 2007 3:06 am

Agreed, It can be done, but not with that cannon at its present state.
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Unread postAuthor: Hubb » Thu Sep 13, 2007 3:20 am

MrCrowley wrote:Agreed, It can be done, but not with that cannon at its present state.


My thoughts exactly.
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Unread postAuthor: jackssmirkingrevenge » Thu Sep 13, 2007 3:28 am

I'll give it a go with my burst disc launcher when I get home :D

You'd have thought that if it really went through like that, it would have stuck in the board...
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Unread postAuthor: Novacastrian » Thu Sep 13, 2007 4:22 am

BS BS BS
:P :P :P :P :P :P
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Unread postAuthor: Rudesill Ballistics » Thu Sep 13, 2007 4:39 am

I have a blowgun launcher.

I've shot them too fast at a dart board, they bent.

When the front stops, the back wants to keep on going.

That's why this is fake.
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Unread postAuthor: Hotwired » Thu Sep 13, 2007 4:47 am

Mmm.... I've tried long nails at thick wood and when they stop the back end crumples and often bends right over to flatten against the wood.

Bet he drilled it :P
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Unread postAuthor: Redcoat » Thu Sep 13, 2007 4:55 am

BS!!!!!
As if the dart wouldn't have just bent and gone off course etc.

It can be done though i reckon.
Maybe we should hold a friendly no prize contest too see who can penetrate a coin with one of their guns.
I'd better use a foreign coin though because i don't want to deface the Queen. :D
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Unread postAuthor: MrCrowley » Thu Sep 13, 2007 5:10 am

Haha you're on, i'll need one helluva sabot for my GB gun :P I've got a spear somewhere i'll try.
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Unread postAuthor: jackssmirkingrevenge » Thu Sep 13, 2007 5:13 am

Redcoat wrote:It can be done though i reckon.
Maybe we should hold a friendly no prize contest too see who can penetrate a coin with one of their guns.


Not really an issue, there are countless launchers on this forum that have been demonstrated to penetrate sheet metal easily with the right ammunition.
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Unread postAuthor: MrCrowley » Thu Sep 13, 2007 5:20 am

Yeah sheet metal is easy, but a coin is something different because it's so small, and made from different material, like I can send a small round cylinder of aluminium through a metal tool box, no problem but because it's so big it will just f*ck the coin up, not go through it.

I've got some spare Thai baht coins and some Euro coins I can shoot, sorry to deface your currency JSR :D
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Unread postAuthor: jackssmirkingrevenge » Thu Sep 13, 2007 5:24 am

MrCrowley wrote:Yeah sheet metal is easy, but a coin is something different because it's so small, and made from different material, like I can send a small round cylinder of aluminium through a metal tool box, no problem but because it's so big it will just f*ck the coin up, not go through it.


Fair comment, but if you can hammer a nail through a coin, then you can shoot one through it ;)
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