Dual Sparks

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
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SpudBlaster15
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Sun Oct 22, 2006 6:02 pm

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Last edited by SpudBlaster15 on Wed Jul 14, 2021 11:18 am, edited 1 time in total.
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Tshylea
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Sun Oct 22, 2006 7:17 pm

Try just wiring it up outside of your cannon first. If you can get a decent spark then go for it.
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jjk92
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Sun Oct 22, 2006 7:18 pm

spudblaster if its a medicine bottle cannon that should do the trick but a big cannon not so much a couple of suggestions: a large bbq grill sparker sold at homedepot by the grills has a big red botton on it , a stun gun, electric fly swatter, or a lattern sparker
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034936
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Sun Oct 22, 2006 8:51 pm

how do u get bbq ignitors to split to make 2 sparks?
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experament_u2
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Mon Oct 23, 2006 1:14 am

y wont a long nose lighter work for big cannons
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SpudBlaster15
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Last edited by SpudBlaster15 on Wed Jul 14, 2021 11:19 am, edited 1 time in total.
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034936
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Mon Oct 23, 2006 2:15 am

can anyone walk me through how exactly they set up their dual spark ignition from a bbq ignitor? thanks
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jjk92
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Mon Oct 23, 2006 2:24 pm

im sorry i should have clarified that it will work but from my experience not at all well a two spark wold be like this the T's are screws connect one wire to the far right screw and one wire to the far left screw then there is a screw in the middle the paint picture would not work so hhere it is T=screw *=spark connest one wire to the (+) screw and one to the (-) screw


(+) T T T(-)
* *
Last edited by jjk92 on Wed Oct 25, 2006 6:27 pm, edited 1 time in total.
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patchystar04
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Mon Oct 23, 2006 7:28 pm

a standard igniter will jump a 3-5 mm spark so compensating for electric resistance the skrews would be near 2 mm apart not only being a pain to drill but then the sparks wouldn't even jump through the gasses (just air that is atomosphered to the skrews) thus not even igniting it. not saying that it will not work but you may have many misfires However, a BBQ igniter will jump 8-12mm making it much easier for the spark to jump through gas igniting it ( they also have a more powerful spark) and now you know and knowing is half the battle (GI joe)
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escape
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Tue Oct 24, 2006 4:03 am

Easiest way to rig up a dual sparks is using the CS system. Easy and effective, simple as that. http://www.burntlatke.com/short.html

Best site for beginners wanting some basic information on some otherwise reasonably complicated things.
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SpudBlaster15
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Last edited by SpudBlaster15 on Wed Jul 14, 2021 11:18 am, edited 1 time in total.
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SpudBlaster15
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Last edited by SpudBlaster15 on Wed Jul 14, 2021 11:19 am, edited 1 time in total.
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escape
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Fri Oct 27, 2006 1:50 am

Nice...How strong is each individual spark oppossed to when you were using just one ignition point, you were at any point?

KIR
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SpudBlaster15
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