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My New Combustion

Built a combustion cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: Hubb » Tue Apr 15, 2008 2:28 pm

Thanks. I actually tried to make this one look and work good. And it does!!

Above, I mentioned I removed the stun gun and tied in an electric BBQ instead. I had a slight problem re-installing the strip, so here is what I did:
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07_103.jpg
The large screws are flipped around and held onto the strip with an extra nut. This holds the screws in place and allows for much easier installation.
07_103.jpg (17.33 KiB) Viewed 435 times
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Unread postAuthor: Blitz » Tue Apr 15, 2008 2:49 pm

Did you find the BBQ igniter to be more effective? I know most people utilize stunguns because of its reliability.
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Unread postAuthor: Hubb » Tue Apr 15, 2008 3:06 pm

I have yet to have a misfire, but I've only tested the BBQ igniter a couple of times.

As far as reliability goes, the stun gun is more reliable, but I need to use it on my hybrid. Right now, it's the only thing I have that will fire it.
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Unread postAuthor: Blitz » Tue Apr 15, 2008 3:09 pm

The reason I asked is because I was trying to decide what I would use for my ignition source, and I have been undecided between an electric BBQ igniter and a stun gun.

Although, I can easily interchange the two if one option doesn't work out.
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Unread postAuthor: Hubb » Tue Apr 15, 2008 3:12 pm

The stun gun tends to produce a much heavier spark, but, for a normal combustion, any spark will do. The BBQ igniter is easier to wire up and I got mine to throw a spark of about 1/2".

They both run about the same price (considering you obtain a cheap stun gun).
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Unread postAuthor: Blitz » Tue Apr 15, 2008 3:16 pm

That's pretty good, and that's between your three spark gaps, or 1/2" total? (Oh yeah, and what is the distance between your electrodes anyway?)
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Unread postAuthor: Hubb » Tue Apr 15, 2008 3:45 pm

The electrodes are about 1/8" apart.

I tested the igniter, prior to installation, and could maximize a spark at 1/2". I was a little skeptic about it, however, which is why I eliminated the gaps, except for the central one.

I have yet to test the new igniter with the triple gap, but I have seen no performance loss with one spark versus three sparks, so I'll probably just keep it the way it is now (unless I manage to get another stun gun).
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