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Multi BBQ spark?

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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Multi BBQ spark?

Unread postAuthor: Can-O-Man » Sun Nov 26, 2006 12:15 pm

sorry if this is a noob question but i am a noob to cumbustion cannons. i have a simple Pvc cannon with a BBQ igniter. this ignoter works fine (as in it arch everytime) but when i load the fuel and press the button nothing happens. so i was wondering if i added two more electrodes on the some igniter would help? also is it even possible or would it make both really weak?

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Unread postAuthor: squeaks » Sun Nov 26, 2006 12:29 pm

Your problem is probably that there is too much or too little fuel. Too much fuel and there won't be enough oxygen for it to light and too little fuel and there won't be enough gas to light. Also, 2 spark gaps should be possible with a bbq ignitor so long and the two gaps combined are slightly less than the single gap you're getting.
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Unread postAuthor: SpudBlaster15 » Sun Nov 26, 2006 1:35 pm

Dont wire them in parallel as in your diagram, the current will simply jump the shortest gap. Wire then in series, like this.

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If your gun is under barrelled, you will notice a big difference in performance.
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Unread postAuthor: Can-O-Man » Sun Nov 26, 2006 1:50 pm

oki see but imy cannon doesn't have the electrodes directly across for one another. there mor like this

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now how would i wire it?
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Unread postAuthor: SpudBlaster15 » Sun Nov 26, 2006 2:24 pm

The same way...

It doesnt matter how your electrodes are positioned, the goal is to make the current jump both gaps before it is able to return to the igniter.
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Unread postAuthor: Can-O-Man » Sun Nov 26, 2006 2:26 pm

could you please draw a diagram using a picture like mine please i'm a little confused with the way i have it set up
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Unread postAuthor: SpudBlaster15 » Sun Nov 26, 2006 2:33 pm

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Unread postAuthor: Can-O-Man » Sun Nov 26, 2006 2:44 pm

thank you so much i'll try it this week and i'll let you know if it works.
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Unread postAuthor: Can-O-Man » Sun Nov 26, 2006 4:32 pm

i can't even get my single set of electrodes to arch i'm so damn frustarated. what is the problem. maybe i can use a diffrent igniton source but still use the two holes? money is tight i don't want to buy a stun gun or use flint.
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Unread postAuthor: SpudBlaster15 » Sun Nov 26, 2006 4:43 pm

BBQ igniters are known to fail suddenly and without warning, usually due to failure of the piezoceramic crystal inside by means of a fracture. However, I would assume that your problem is more along the lines of contaminated electrodes. Hairspray tends to leave a residue on the electrodes, insulating them and preventing current from arcing across the gap. Try cleaning them.
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Unread postAuthor: squeaks » Sun Nov 26, 2006 4:48 pm

That and a stung gun costs $20 bucks on ebay. A BBQ ignitor will cost about 10-15 bucks. If you have to replace it once(which a stun gun like never breaks) then you're already to 20-30 bucks that you could have spent on a stungun.
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Unread postAuthor: Can-O-Man » Sun Nov 26, 2006 4:53 pm

how do i hook up a stun gun? i apriciate all of your help (once again i'm a noob)
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Unread postAuthor: Flying_Salt » Sun Nov 26, 2006 5:04 pm

Is gort still selling his custom stun gun boxes?
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Unread postAuthor: )DEMON( » Sun Nov 26, 2006 5:05 pm

http://www.burntlatke.com/stun.html

I wish you people looked around a little harder, look in the links section and in the Wiki :wink:
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Unread postAuthor: jjjd » Fri Dec 01, 2006 12:03 pm

one bad thing is that you cant gey stun guns in canada, so im skrewed!
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