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Nalgene bottle

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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Unread postAuthor: jackssmirkingrevenge » Wed Nov 07, 2007 1:34 am

A-98 wrote:Image


cool, plus the volume's marked so you can even see how much air you're putting in :D

Image
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Unread postAuthor: Novacastrian » Wed Nov 07, 2007 1:52 am

Wombat wrote:Polycarbonate has a tensile strength 9000 pounds per square inch, and can withstand sudden impacts of 5 foot-pounds per inch of thickness. That is why the manufacturers advertise the Bottles as "indestructible." The bottles aren't actually pressure rated though.


What thickness are you referring to?

Edit: Square inch, does this go for burst pressure also?

cool, plus the volume's marked so you can even see how much air you're putting in Very Happy

I just got that :roll:
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Unread postAuthor: LikimysCrotchus5 » Wed Nov 07, 2007 2:56 am

ohh, ty. I have never seen one of those b4 :(
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Unread postAuthor: psycix » Wed Nov 07, 2007 5:54 am

Maybe test one until it bursts? :)
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Unread postAuthor: Novacastrian » Wed Nov 07, 2007 5:59 am

psycix wrote:Maybe test one until it bursts? :)


Now there is a goood idea :twisted:
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Unread postAuthor: Maniac » Wed Nov 07, 2007 8:45 pm

yea i was wondering what those were two i have like 5 of them i think i might use one on my nex golfball sniper im designing
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Unread postAuthor: noname » Wed Nov 07, 2007 9:54 pm

I would highly advise against using one of those for a pneumatic chamber. I had one that got some nasty stuff crusted in the bottom of it, so I blew it up. I globbed epoxy all over the threads, screwed on the top really tightly, tapped a 20 foot hose into it, and pumped air in from the hose until it blew. It only took about 80 psi and shards flew all over my yard.
It'll work for a basic combustion, but I wouldn't go more high tech than that.
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Unread postAuthor: BigGrib » Wed Nov 07, 2007 10:07 pm

noname wrote:I would highly advise against using one of those for a pneumatic chamber. I had one that got some nasty stuff crusted in the bottom of it, so I blew it up. I globbed epoxy all over the threads, screwed on the top really tightly, tapped a 20 foot hose into it, and pumped air in from the hose until it blew. It only took about 80 psi and shards flew all over my yard.
It'll work for a basic combustion, but I wouldn't go more high tech than that.


Where did you tap in at in the bottle or in the cap??
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Unread postAuthor: psycix » Thu Nov 08, 2007 7:03 am

psycix wrote:Maybe test one until it bursts? :)


noname wrote:I would highly advise against using one of those for a pneumatic chamber. I had one that got some nasty stuff crusted in the bottom of it, so I blew it up. I globbed epoxy all over the threads, screwed on the top really tightly, tapped a 20 foot hose into it, and pumped air in from the hose until it blew. It only took about 80 psi and shards flew all over my yard.
It'll work for a basic combustion, but I wouldn't go more high tech than that.


He did it! :D

Now we know we cant use em until 80PSI (well, actually BELOW 80psi introducing a safety margin)
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Unread postAuthor: Rogue » Thu Nov 08, 2007 6:08 pm

lol


yay i get to go and get some pvc glue and pipe at home depot...yayyyyy...lol
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Unread postAuthor: noname » Mon Nov 12, 2007 7:27 pm

I filled the cap in about 3/8" with epoxy, and tapped through the top of the cap.
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