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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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Nalgene bottle

Unread postAuthor: Rogue » Tue Nov 06, 2007 10:09 pm

ya know those "unbreakabe" nalgene bottles?

those might be a very good pneumatic chamber.

tell your stance on this :P
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Unread postAuthor: spudgunnerwryyyyy » Tue Nov 06, 2007 10:12 pm

I say it should work. ive like though one off a cliff and it was fine.
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Unread postAuthor: Rogue » Tue Nov 06, 2007 10:22 pm

because i tried to break one before and i cant! :? 2 hours later and it is all scratched up bit no cracks :D
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Unread postAuthor: Lentamentalisk » Tue Nov 06, 2007 10:24 pm

The only problem would be attaching it to your barrel... maybe shave off the threads and epoxy in some home made bushing?
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Unread postAuthor: DYI » Tue Nov 06, 2007 10:25 pm

They will break. Someone put dry ice and hot water in one. About 5 seconds later it shattered violently, and took about half of his hand with it.
As long as you hydrostatically test it to 3 times its intended working pressure and it holds, it should be fine.
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Unread postAuthor: spudgunnerwryyyyy » Tue Nov 06, 2007 10:26 pm

Dry ice is un controlled conpressed air is regulated.
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Unread postAuthor: Wombat » Tue Nov 06, 2007 10:31 pm

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.
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Unread postAuthor: Rogue » Tue Nov 06, 2007 10:39 pm

btw what is the highest psi that you can take sch 40 to?

i took my mini pnumatic to 160 psi. is that safe?
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Unread postAuthor: spudgunnerwryyyyy » Tue Nov 06, 2007 10:48 pm

what size of sch40, sch40 is just a wall thick ness it should have a pressure rating on the size of the pipe. all sch40 pressure pipe is good under 200psi
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Unread postAuthor: Lentamentalisk » Tue Nov 06, 2007 10:51 pm

Rogue wrote:btw what is the highest psi that you can take sch 40 to?

i took my mini pnumatic to 160 psi. is that safe?


Thats not completely off topic and random. Use the search button, there is a table somewhere. Look on the tube, it will say.

Anyways, back on topic. So the decision is that it would not be safe to use? What about in a hairspray comb. or prop. comb? Those only get up to about 80psi. I have heard.
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Unread postAuthor: Rogue » Tue Nov 06, 2007 10:52 pm

ok thanks a lot
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Unread postAuthor: spudgunnerwryyyyy » Tue Nov 06, 2007 10:52 pm

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Unread postAuthor: PVC Arsenal 17 » Tue Nov 06, 2007 11:00 pm

Pipe is fine too.
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Unread postAuthor: LikimysCrotchus5 » Wed Nov 07, 2007 12:50 am

can someone show me a pic, i dont think i have ever seen one of these
:D
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Unread postAuthor: A-98 » Wed Nov 07, 2007 1:30 am

Image
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