help with propane

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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imjustpk
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Sun Jan 28, 2007 5:25 am

so what is the simplest way to fuel with propane without metering?
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Brian the brain
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Sun Jan 28, 2007 5:44 am

Open up the blowtorch and point it into the chamber...
Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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chaos
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Sun Jan 28, 2007 6:46 am

yer agree or simply tap a thread and use that

C@SE-G :twisted:
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frankrede
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Sun Jan 28, 2007 1:41 pm

Could you elaborate on that chaos?
Current project: Afghanistan deployment
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chaos
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Mon Jan 29, 2007 3:34 am

wateva frankrede.
imjustpk just make sure you tap the thread right personally i choose steel over plastic for the fact being i have no idea of the pressure ratings of pvc and other plastics and not only that ive seen what it takes for a tapped thread in 2mm steel to fail.

C@SE-G
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LGM
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Mon Jan 29, 2007 7:24 am

Once again, could you make that a bit clearer Chaos?
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crsaz
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Mon Jan 29, 2007 6:42 pm

how about filling a balloon with propane so you can more accuratly guess the amount of propane you are putting in your chamber I will try this today. just stick a peice of a tooth pick in openning of the bottle put a balloon over it and press down on the tooth pick from inside the balloon
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LGM
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Mon Jan 29, 2007 6:54 pm

If you are thinking of using the toothpick to trigger the propane bottle, it is not strong enough. Use the hose from a bbq tank or put it over a torch head. The best way to pop it would be to put a screw in the breech plug.
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frankrede
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Mon Jan 29, 2007 9:15 pm

chaos wrote:wateva frankrede.
imjustpk just make sure you tap the thread right personally i choose steel over plastic for the fact being i have no idea of the pressure ratings of pvc and other plastics and not only that ive seen what it takes for a tapped thread in 2mm steel to fail.

C@SE-G
What? DO you even know what a propane setup is?
Current project: Afghanistan deployment
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chaos
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Mon Jan 29, 2007 9:22 pm

mate i know what they are.
read the "safe?" topic please

peace
CHaOS :twisted:
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crsaz
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Mon Jan 29, 2007 9:45 pm

tooth pick is strong enough I have done it before
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