The PMCC-01

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
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airpress
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Thu Jan 04, 2007 5:15 am

PMCC means Propane Metered Combustion Cannon

Hello everybody!
I've build ( I think you can guess it) a new combustion cannon.
I've now access to propane regulators, and can now build propane metering systems.
So I've bought one and ask my dad if he could get pipes from his work.He get me some 35cm 2"pipe.
Two days later I began to build (not the cannon), calculated metering volume, barrel to chamber ratio,...
But I've toke pics of the progress.
Here are them!!

Greetz, airpress

Edit: The barrel is not long enough to get a 1:1 barrel to chamber ratio, but it work great and has a good power compaired to the lenght of the barrel.(80cm long)

http://www.putfile.com/pic.php?img=4412357
Here is the combustion chamber. 2" and 35cm long
On the side were there is teflon on its, comes a 2" to 1 1/4" reducer for the barrel.
On the other side come a 2" to 1" reducer.
http://www.putfile.com/pic.php?img=4412358
Propane bottle and regulator.
http://www.putfile.com/pic.php?img=4412359
Here I'm tapping a 1/8" hole in the pipe to connect the metering system to it.
http://www.putfile.com/pic.php?img=4412360
A pic the I hold the metering system against the 1/8" elbow.

Some pics of the metering system attached.
http://www.putfile.com/pic.php?img=4412361
http://www.putfile.com/pic.php?img=4412362
http://www.putfile.com/pic.php?img=4412363
http://www.putfile.com/pic.php?img=4412364
http://www.putfile.com/pic.php?img=4412365


Here a pics of the cannon painted.
http://www.putfile.com/pic.php?img=4412366
http://www.putfile.com/pic.php?img=4412367
http://www.putfile.com/pic.php?img=4412368
http://www.putfile.com/pic.php?img=4412371
http://www.putfile.com/pic.php?img=4412372
http://www.putfile.com/pic.php?img=4412373

Sorry for some fuzzy pics, they were token with my phone.
Last edited by airpress on Thu Jan 04, 2007 7:06 am, edited 1 time in total.
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killagorrila99
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Location: Australia.

Thu Jan 04, 2007 5:39 am

NICE, I really like it. You know what else I like?

Feetus's
"I'm sorry, Mr.Bush cant come to the phone right now, He's playing cleudo with Mr. Cheney And he has him in the Cupboard with a broom stick" -White house receptionist.
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Pyro Ninja
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Thu Jan 04, 2007 5:42 am

Very nice paint job
greens me favourite colour :D
Good job

PS.. were you ment to call your dad a bad
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airpress
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Thu Jan 04, 2007 7:07 am

I've changed it.

Thx for the comments

killagorrila99: What do you mean with feetus's??
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experament-u2
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Thu Jan 04, 2007 6:58 pm

it looks pretty kool nice work
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Canuckicks
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Thu Jan 04, 2007 8:13 pm

Nice cannon, im like the grip on the barrel, nice feature :lol:
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Deko
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Thu Jan 04, 2007 9:13 pm

very nice cannon, i like the handle of it and the metal chamber, most ive seen are pvc, i love your paint job on it as well 8)
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Etc1990
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Location: Lakeland,fl
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Thu Jan 04, 2007 11:36 pm

Very nice gun,you took your time it seems and it paided off.
pyromanic13
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Fri Jan 05, 2007 1:19 am

dude! it's all metal! make it a hybrid.
Movie dialogue: "The good die first."
Tom: "But most of us are morally ambiguous, which explains our random dying
patterns."
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