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Help with igniter?

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 igniter?

Unread postAuthor: Bobbyd » Sat Feb 03, 2007 2:31 pm

I've tried a bbq liter with no luck. So now I'm trying this Power-Mite Prod that I got from my father.

http://www.backyardstyle.com/shop/index ... page-14484

This thing will not arc. Its kinda old and I thought I would have a chance with it. I cleaned it up with no luck. I opened it up and tried just the bare wires with the same result. It just cuts off when they get to close. How could I mod this to work?

I can't get a stun gun since I live in Michigan. :(

What are my other options?

This is my first spud cannon so its a learning process for me.
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Last edited by Bobbyd on Sat Feb 03, 2007 2:45 pm, edited 1 time in total.

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Unread postAuthor: jrrdw » Sat Feb 03, 2007 2:44 pm

You can contact www.bcarms.com , and he can hook you up with what you need. May be some cost involved, but he builds some very stunning ignition boxes!
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Unread postAuthor: willarddaniels » Sun Feb 04, 2007 12:10 am

You can always move to a state that allows stun guns... like Idaho. We also have a few potatoes here. :roll:
Many people can sell you an ignition source that incorporates all the components of a stun gun, just in a different shell (no outside contact points). This way, your ignition source is still legal.
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Unread postAuthor: MrCrowley » Sun Feb 04, 2007 12:13 am

No pun intended im sure :wink:

Anyway someone else tried something similar. Since its only for prodding not stunning and 250lb hunk of meat/person :wink: it only produces about 7,000volts I hear....You need about 12,000 for a decent spark.

Edit: My bad, looks like SB15 knows his cattle prods :wink:
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Last edited by MrCrowley on Sun Feb 04, 2007 2:32 am, edited 1 time in total.
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Unread postAuthor: SpudBlaster15 » Sun Feb 04, 2007 2:24 am

7,000 volts (not accounting for electrical resistance) will jump a 7mm gap. With electrical resistance taken into account, a 7,000 volt source could easily jump a 1/4" gap. Plenty for a decent spark, though I doubt cattle prods produce anywhere near that.

EDIT: From the link provided in the first post:

4,500 volt prod


Should create a decent spark given a relatively small gap and low resistance connections and wiring.
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Unread postAuthor: Bobbyd » Sun Feb 04, 2007 5:01 am

Nope. Even with it opened up and the bare wires very close it won't spark.

What if I removed some resistors? lol...
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Unread postAuthor: Hotwired » Sun Feb 04, 2007 5:49 am

Do you know if it actually works?

No its not a good idea to remove resistors, they won't be in there to limit the voltage.
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Unread postAuthor: Bobbyd » Sun Feb 04, 2007 1:30 pm

It does work. I know for a fact that it does.
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Unread postAuthor: Bobbyd » Sun Feb 04, 2007 1:48 pm

What if I was to build my own?

Something like this? lol

http://www.i-hacked.com/content/view/181/48/
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Unread postAuthor: Killjoy » Sun Feb 04, 2007 2:17 pm

That method of modding a camera flash ciruit won't work because it still won't jump a gap because the voltage is to low (300 volts). check out this link if you want to use a camera flash http://www.spudfiles.com/forums/viewtopic.php?t=4611&.
Or you could also go to a neon sign store and see if they hav any neon transformers that are battery operated (the place were i live had a replacment transformer for a neon license plate light for a car which ran off of 12 volts.) Or you could just buy an ignition box from BC.
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Unread postAuthor: BIKER180360 » Wed Feb 07, 2007 6:39 am

Bobbyd wrote:Nope. Even with it opened up and the bare wires very close it won't spark.

What if I removed some resistors? lol...
try taking apart one of those big igniters used for camping . then get the clicker out of it. that is the thing that is under the red button that u push. there will be two wires. drill two little pilot holes in ur cannon. put one wire in each pilot hole. make the wires about 2 cm apart so they produce just enough spark. then when u press the little button the wires will produce a spark. this will work. it worked for me . well but bbq igniters work for me also. good luck. :lol:
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