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Metal hybid ignition question

Post questions and info about hybrid (compressed gas with fuel) powered cannons here. This includes discussion about fuels, ratios, ignition systems, build types, safety, and anything else relevant.
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Metal hybid ignition question

Unread postAuthor: bigbob12345 » Thu Dec 06, 2007 7:58 pm

I dont get how people hook up the ignition system on a metal hybrid wont the electricety go all over the metal because it conducts electricity
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Unread postAuthor: Maniac » Thu Dec 06, 2007 8:21 pm

many put some insulation around the spark gap
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Unread postAuthor: Novacastrian » Thu Dec 06, 2007 8:25 pm

As simple as the following example.
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Unread postAuthor: mark.f » Fri Dec 07, 2007 6:25 am

Only one electrode needs to be insulated from the other. I usually hook the ground electrode to the cannon body anywhere, and run the hot electrode through a piece of 1/4" nylon bolt with #6 threaded rod to insulate it from the cannon.
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Re: Metal hybid ignition question

Unread postAuthor: jimmy101 » Fri Dec 07, 2007 1:19 pm

bigbob12345 wrote:I dont get how people hook up the ignition system on a metal hybrid wont the electricety go all over the metal because it conducts electricity

Bigbob, here's something to think about;

A 4-cylinder gasoline engine can be described as a
Quad, full-auto, 8X hybrid spud gun that fires a captured round

A gasoline engine is metal.
A gasoline engine uses a spark to ignite the fuel in the cylinder.

How does a gasoline engine do that without the electricity going all over the metal?
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Unread postAuthor: sjog » Sat Dec 08, 2007 10:03 pm

very good jimmy101
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