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SpudFiles Forum Index » Combustion Cannon Discussion » How do I rig a camera flash?
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Hotwired
PostPosted: 10/29/2006 18:40 PM    Post subject: Reply with quote

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Ah yes. Make sure the battery is out.

Otherwise it's possible for it to keep recharging Wink
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Flying_Salt
PostPosted: 10/29/2006 19:25 PM    Post subject: Reply with quote

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And that wouldn't be nice

EDIT: I checked Spud Wiki and I realized I could just cram that whole system into a project box with a couple official-looking LED's and a "kill switch" on it. Radio Shack should have that stuff, right?
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Hotwired
PostPosted: 10/29/2006 19:41 PM    Post subject: Reply with quote

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From what I've heard of Radio Shack it should.
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Flying_Salt
PostPosted: 10/29/2006 19:53 PM    Post subject: Reply with quote

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Yeah I was browsing thier site a little they should have it all.
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SpudBlaster15
PostPosted: 10/29/2006 20:29 PM    Post subject: Reply with quote

Human blast shield
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I just read that you do not need to use an ignition coil to get an extremely powerful spark out of a camera flash circuit. 300 volts is enough, as there is a primary capacitor that first ionizes a very small path across the electrode gap, providing an extremely low resistance path for the high voltage cap to discharge through. This causes a massive quantity of gas around the electrodes to be ionized, creating more of a large flash rather than a small spark. I wonder how it would work with my 3 arc setup. I may have to try this.
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Hotwired
PostPosted: 10/30/2006 5:54 AM    Post subject: Reply with quote

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You need to dismantle the bit around the flash tube and make sure you get all three wires.

Theres only one wire coming off the really high voltage but really low power capacitor that ionises the air and thats usually attached to a metal strip which should be arranged close to the gap between the two main capacitor wires.

You get about a 1cm spark using the ionising capacitor to help the 300v capacitor.
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Jpyr0
PostPosted: 10/30/2006 18:09 PM    Post subject: Reply with quote

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This will help you alot. =]

http://www.youtube.com/watch?v=-ErFr66Y0LQ
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Flying_Salt
PostPosted: 10/31/2006 18:29 PM    Post subject: Reply with quote

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Very informative video...
Well it's Halloween so I have to do things (guard the house, lead little sisters around nieghborhood, et cetera) so I'll probly get started on that tomorrow. Let's all hope I don't fry myself again.
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