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Propane Questions

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: SpudFarm » Wed Mar 26, 2008 5:59 pm

lol, can you believe this guy bigbob12345? What a douche bag

he was trash talkin my girl. i think we should take him out lol.
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Unread postAuthor: Ecstasy » Wed Mar 26, 2008 5:59 pm

I'm not quite sure how I would get that to work as a firing mechanism though. What could I wire to the 12V battery (besides the fans) to cause a spark?
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Unread postAuthor: STHORNE » Wed Mar 26, 2008 5:59 pm

oh lol, ok. I'll try to track his IP too.

ecstasy wrote:I'm not quite sure how I would get that to work as a firing mechanism though. What could I wire to the 12V battery (besides the fans) to cause a spark?

a stun gun would be nice
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Unread postAuthor: bigbob12345 » Wed Mar 26, 2008 6:01 pm

force mrc to give us the ip adress,jk
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Unread postAuthor: STHORNE » Wed Mar 26, 2008 6:02 pm

lol, he'll probably pm him a warning not to be such an a$s hole. haven't heard from him in a while
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Unread postAuthor: SpudFarm » Wed Mar 26, 2008 6:09 pm

sorry off topic..
i will get his IP soon (cant tell how here he will understand)
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Unread postAuthor: Ecstasy » Wed Mar 26, 2008 6:09 pm

Stun guns use a 9V though I wouldn't want to buy it and disassemble it if I was just going to burn it out in 30 seconds lol.
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Unread postAuthor: STHORNE » Wed Mar 26, 2008 6:12 pm

well, are you going to be using them both at the same time? otherwise trash the stun gun idea....ever consider making an ignition system from a disposable camera flash circuit? Here's a good tutorial
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Unread postAuthor: Ecstasy » Wed Mar 26, 2008 6:33 pm

Mmm.. Probably wont be using it at the same time. The disposable camera idea looks good as I read through it but somewhat complicated. Maybe I'll just stick with 9v and do a stungun and put 9v plugs on the fan(s) and wire it to a battery box with switches.
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Unread postAuthor: STHORNE » Wed Mar 26, 2008 6:37 pm

usually, for a regular pc fan, just 1 9v battery works well. no need for 2, just speeding up the "burning of the motor" process.

but yeah, thats what i would do, is run the separate things off of separate batteries, that way, there isn't any overkill of power and you don't end up wrecking anything.
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Unread postAuthor: Ecstasy » Wed Mar 26, 2008 6:49 pm

It would still be fun to have the power of a fully charged 12V cell at ones disposal lol but yea I'll stick with 9V unless I can figure out some way to make the 12V work.
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Unread postAuthor: SpudBlaster15 » Wed Mar 26, 2008 6:53 pm

F (_) C K Y O U wrote:you are all gay and need to get a life


Probably not a good idea to piss off a forum full of people who build potentially lethal projectile firing weapons as a hobby. :wink:
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Unread postAuthor: Ecstasy » Thu Mar 27, 2008 3:43 pm

sthorne wrote:well, are you going to be using them both at the same time? otherwise trash the stun gun idea....ever consider making an ignition system from a disposable camera flash circuit? Here's a good tutorial


Btw will a spark jump between a gap with this or is the steel wool required?
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Unread postAuthor: STHORNE » Thu Mar 27, 2008 4:03 pm

no steel wool required, the ignition coil should create enough electricity to produce a hefty spark. if you use a car ignition coil, you could probably get a good 2-4" spark gap.
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