pneumatic cannon high psi air chambers

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
gjohng
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So far i know how to make a sch 40 pvc air chamber, if anyone knows

how to connect fire extinguishers, or anyother type of chambers that can

hold a high psi, please post what they are, If you know were to get them,

and how to mod them to work for spud guns.

(pictures would be a huge help for me)

thank you. :D
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spudthug
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4" piston valved cannon-half done..( i spilt my cement...)

Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
Brooner115
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hey man I got a pretty sweet Fire Extinguisher that I can really use but its fairly old and its filled with this powdery stuff I think its lime or something can you help me maybe get that stuff out or know how to empty it?
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lukemc
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cant you just wash it out? or if its still presurised just spray it
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gjohng
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wow thank you guys for all the help! :)
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mopherman
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Have you considered using threaded steel pipe? it can hold high pressure and its just regular npt. The threads on fire extinguishers are pretty exotic but jbweld might work.
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prosniper
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spudthug wrote:http://www.spudfiles.com/forums/double- ... t8172.html

http://www.spudfiles.com/forums/amg-v-2-0-t7733.html

http://www.spudfiles.com/forums/jme-45-t7868.html

http://www.spudfiles.com/forums/water-c ... t7713.html

http://www.spudfiles.com/forums/amg-fe- ... t6904.html

http://www.spudfiles.com/forums/the-ham ... t8710.html

fire extinguishers are my best freinds :D
HAY DONT FORGET MINE http://www.spudfiles.com/forums/viewtop ... html#98173


hay dont forget mine

i seriously use them all of the time...

i silver soldered all of them except one which i jbwelded...

jb weld is fine jsut plop a fitting in there and epoxy it
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Jumpin Jehosaphat
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prosniper wrote:
spudthug wrote:http://www.spudfiles.com/forums/double- ... t8172.html

http://www.spudfiles.com/forums/amg-v-2-0-t7733.html

http://www.spudfiles.com/forums/jme-45-t7868.html

http://www.spudfiles.com/forums/water-c ... t7713.html

http://www.spudfiles.com/forums/amg-fe- ... t6904.html

http://www.spudfiles.com/forums/the-ham ... t8710.html

fire extinguishers are my best freinds :D
HAY DONT FORGET MINE http://www.spudfiles.com/forums/viewtop ... html#98173


hay dont forget mine

i seriously use them all of the time...

i silver soldered all of them except one which i jbwelded...

jb weld is fine jsut plop a fitting in there and epoxy it
U usually write something after you quote somebody. Lol.
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Gepard
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He wrote it inside the quote instead.

Michael
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he put his message inside the quote
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Jumpin Jehosaphat
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Oh weird, He wrote right into the middle of the quote... I didn't read it carefully enough lol.

Edit: Btw hay is for horses.
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