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Wiring a 12v fan

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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Unread postAuthor: Pete Zaria » Wed Jul 18, 2007 9:59 pm

I use a 12V rechargeable cordless drill battery, but a 9 volt and two AA's in series works fine (just doesn't last as long).

If you can't solder, alligator clips and electrical tape are your best bet. A cheap soldering iron is about $10.

Peace,
Pete Zaria.
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Unread postAuthor: Thrilla » Wed Jul 18, 2007 10:07 pm

Even a lighter and electrical tape / heat shrink tube will do.
Strip the wires, twist some fine solder onto the bare wire, heat with a lighter, then insulate.
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Unread postAuthor: mtronic » Thu Jul 19, 2007 3:36 am

Starting voltage for many computer fans is 7v, below that it won't even start
My fan used to run off a 6v battery and pretty fast too. Maybe some fans just suck ass?
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Unread postAuthor: flamerz14 » Thu Jul 19, 2007 5:32 am

ok..dead post but thanks anyways..
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Unread postAuthor: Thrilla » Thu Jul 19, 2007 6:35 am

mtronic wrote:
Starting voltage for many computer fans is 7v, below that it won't even start
My fan used to run off a 6v battery and pretty fast too. Maybe some fans just suck ass?


Many, not all lol. I have a brushless fan with a max power rating of 5v, starts at 1.5v. hmm this actually reminded me, I could use that 5v blower fan to mix fual, it blows air in 360 degrees instead of only one direction.
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