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help with propane

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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help with propane

Unread postAuthor: imjustpk » Sun Jan 28, 2007 5:25 am

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

Open up the blowtorch and point it into the chamber...
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Unread postAuthor: chaos » 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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Unread postAuthor: frankrede » Sun Jan 28, 2007 1:41 pm

Could you elaborate on that chaos?
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Unread postAuthor: chaos » 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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Unread postAuthor: LGM » Mon Jan 29, 2007 7:24 am

Once again, could you make that a bit clearer Chaos?
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Unread postAuthor: crsaz » 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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Unread postAuthor: LGM » 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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Unread postAuthor: frankrede » 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?
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Unread postAuthor: chaos » 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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Unread postAuthor: crsaz » Mon Jan 29, 2007 9:45 pm

tooth pick is strong enough I have done it before
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