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| )DEMON( |
 Posted: 01/17/2007 6:20 AM Post subject: I need a chamber |
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Air head
Joined: 12 Mar 2006
Posts: 1392
5185.24 Spud Bux
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I was wondering what I could use for a combustion chamber but I don't want to use pvc, I want a metal chamber and I want it to be as big as possable. Cheap too.'
Any ideas where I might find something suitable?  |
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| jrrdw |
| Posted: 01/17/2007 7:45 AM Post subject: |
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Donating Moderator
Joined: 16 Nov 2005
Posts: 3284
5123.35 Spud Bux
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| Thats kinda a tall order, how about a used 55 gallon drum. Or even a 35 gallon drum. |
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| Recruit |
| Posted: 01/17/2007 7:48 AM Post subject: |
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Lieutenant Colonel
Joined: 06 Oct 2006
Posts: 415
256.60 Spud Bux
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Old tank shell?  |
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| experament-u2 |
| Posted: 01/17/2007 8:03 AM Post subject: |
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Lieutenant Colonel
Joined: 26 Dec 2006
Posts: 478
603.61 Spud Bux
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| a fire exstigusher with a ball valve threaded into the back for venting |
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| )DEMON( |
| Posted: 01/17/2007 9:02 AM Post subject: |
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Air head
Joined: 12 Mar 2006
Posts: 1392
5185.24 Spud Bux
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I dunno, Pimp said the 55gallon drum might not be able to withstand the pressure but that is around the size I want. Schmanman said I might be able to use a galvanized steel water tank. Maybe an old boiler.
I really don't know what to make the chamber out of. |
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| jack_the_hack |
| Posted: 01/17/2007 9:17 AM Post subject: |
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Private
Joined: 28 Nov 2005
Posts: 11
19.00 Spud Bux
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what you can do, is go to a flea market. they have alot of junk there, you should be able to find an old scuba tank, without a valve/regulator. that should work just fine. it might be smaller than you want tho. another way isto go to a junkyard and search for an old commercial O2 or N2 tank. they are quite large and hold a lot of pressure.
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5x2 tank...............6.00
5x1 1/2 barrel.......5.65
2" pvc ball valve....7.99
1 schrader valve....4.99
misc fittings...........8.57
hours of anything you can cram in the barrel fun.........Priceless |
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| jrrdw |
| Posted: 01/17/2007 9:34 AM Post subject: |
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Donating Moderator
Joined: 16 Nov 2005
Posts: 3284
5123.35 Spud Bux
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| Did you check around the pumpkin chucken website? They build everything on a large scale. |
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| )DEMON( |
| Posted: 01/17/2007 13:24 PM Post subject: |
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Air head
Joined: 12 Mar 2006
Posts: 1392
5185.24 Spud Bux
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I want to see if I can go bigger than a scuba tank, it really isn't so big.
I did check out the pumkin chunkin web page but you are not allowed to use combustion cannons in that contest. |
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| Recruit |
| Posted: 01/17/2007 15:34 PM Post subject: |
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Lieutenant Colonel
Joined: 06 Oct 2006
Posts: 415
256.60 Spud Bux
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| I know how about one of those really big compressed air tanks that are like 7-8 ft tall and 1 1/2-2 1/2 ft wide. |
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| medievalman |
| Posted: 01/17/2007 15:40 PM Post subject: |
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Captain
Joined: 05 Dec 2006
Posts: 319
23.46 Spud Bux
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| An empty helium tank, maybe. those get big. Or an air compressor that is broken, with the tank intact. |
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| jrrdw |
| Posted: 01/17/2007 16:33 PM Post subject: |
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Donating Moderator
Joined: 16 Nov 2005
Posts: 3284
5123.35 Spud Bux
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| I didn't relize we where in the combustion section. Your gonna need something really strong for that much fuel going off! No wonder Pimpmann said the 55 gallon drum probly won't be strong enough. Man that a real tall order to fill. Your gonna need something 1" thick or better. What kind of fuel you planning on useing? Thats probly the reason the Pumkin Chucken contest won't let people use combustion cannons, to dangerous! |
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| BL4K_}-{4WK |
| Posted: 01/19/2007 5:41 AM Post subject: |
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Private
Joined: 19 Jan 2007
Posts: 4
15.83 Spud Bux
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| use a Stainless steel chamber this would make it alot safer than PVC burst temperature is 3000PSI on standard S/S. and thats with the walls being 2mm and the safe working pressure is over 800 psi, it also goes by the diameter of the pipe it works if the pipe is smaller the better, the smaller the pipe gets the higher the pressure rating goes and aslo the safe working pressure. i dont think you would burst 2mm unless u turned it into a pipe bomb. lmfao |
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| )DEMON( |
| Posted: 01/20/2007 9:06 AM Post subject: |
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Air head
Joined: 12 Mar 2006
Posts: 1392
5185.24 Spud Bux
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I only plan on using propane in this cannon but if it can take a lot of pressure than why not use more powerfull mixes. An oil drum might actually work, a good freind told me there was a combustion cannon on this site that had an oil drum as a chamber, 300 spudbux to the first member to link me too it.
I will have to look around scrapyard for suitable chambers.
Thanks. |
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| Bluetooth |
| Posted: 01/20/2007 9:31 AM Post subject: |
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Brigadier General
Joined: 27 Jun 2006
Posts: 828
34.79 Spud Bux
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| schmanman |
| Posted: 01/20/2007 12:19 PM Post subject: |
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blabbering idiot
Joined: 25 Mar 2006
Posts: 1667
1006.17 Spud Bux
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| he said an oil drum. I remember the thread, the guy said he shots it up in the mountains by his cabin, but the name did not have oil drum in it. |
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