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Safety Switch

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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Safety Switch

Unread postAuthor: Sonicboom101 » Tue Feb 22, 2011 6:39 pm

Hey guys. I have a real quick question, so I have an electric bbq ignitor it's pretty much the same one featured in this thread. Link: http://www.spudfiles.com/forums/mod-an- ... 14589.html

Anyways. I was thinking about wiring some sort of safety switch to it. However I'm not to sure if it could be done. Here's what I was thinking please see the attached image. Any input on how to do this would be most helpful. Thanks!
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Unread postAuthor: ramses » Tue Feb 22, 2011 6:46 pm

Put the safety switch in series with the low voltage side. Almost any switch would arc over on the high voltage side. You may have to move the battery out of the case of the ignitor.
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Unread postAuthor: ilovefire » Tue Feb 22, 2011 7:21 pm

if you mod it like the one in the link you posted just wire in you trigger button and that switch in series like ramses said
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why make it if it dosent shoot?
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Unread postAuthor: motorfixer1 » Tue Feb 22, 2011 7:36 pm

A momentary switch is usually best for safety situations. On my steel over-under, I have a momentary push-button on each handle of the launcher. Both wired in series on the low voltage side of the igniter so they both have to be pressed to activate the ignition system.
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Unread postAuthor: nadjatee1996 » Tue Feb 22, 2011 7:36 pm

The title of "Worse Diagram Drawer" has been passed from me to you, its not meant as offensive, rather, it is an honor to have a title...
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Unread postAuthor: Sonicboom101 » Tue Feb 22, 2011 7:40 pm

I'm not sure if I know what you mean by putting it in series with the low voltage side. I know what putting in series means but I have never heard putting it on the low voltage side. Sorry for me being a noobie...
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Unread postAuthor: nadjatee1996 » Tue Feb 22, 2011 7:50 pm

No offense, and not trying to be mean, but when I first saw the diagram, I mistaked it for something entirely diffrent
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Unread postAuthor: jimmy101 » Tue Feb 22, 2011 8:45 pm

Sonicboom101 wrote:I'm not sure if I know what you mean by putting it in series with the low voltage side. I know what putting in series means but I have never heard putting it on the low voltage side. Sorry for me being a noobie...

It means you should put the switch(es) in series with the battery and not the spark gap.

The battery supplies a couple volts, which can't jump a gap. The high voltage side of the device supplies many thousand of volts which will quite happily jump across the contacts inside a typical switch.
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Unread postAuthor: Crna Legija » Tue Feb 22, 2011 9:24 pm

nadjatee1996 wrote:The title of "Worse Diagram Drawer" has been passed from me to you, its not meant as offensive, rather, it is an honor to have a title...



but you don't need get sad, you now hold the stupidest question ever asked' title its a true honour the be among you
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Unread postAuthor: Sonicboom101 » Wed Feb 23, 2011 4:57 pm

Thanks for the help, for people that did help. For the rest of you that were complaining about my diagram. No offense but your seriously off topic, just thought I'd spit that out. Peace! :D
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