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Stun Gun?

Posted: Sun Mar 11, 2007 3:47 pm
by LosBuenos
where do you get a stun gun for ignition and how are they better than a BBQ igniter? do you set them up the same a BBQ igniters with electrodes going into the chamber and the spark jumping between them?

Posted: Sun Mar 11, 2007 4:29 pm
by A-98
you can get one off the internet, but they might not be legal in your area.
they are better than a piezo because you get a bigger spart, and i beleive its longer lasting(not sure about that). plus you can jump multiple big gaps instead on one smaller one.
yes you set them up in the same was as a piezo sparker

Posted: Sun Mar 11, 2007 8:21 pm
by fom
A piezo produces 10 000-20 000 volts, a stun gun produces +100 000, allowing you to have more spark gaps and bigger gaps. For longer lasting, it depends, the circuits can easily be fried if you hold it too long, so it depends how you treat it.

www.launchpotatoes.com You can get the circuit there or the circuit in a project box.

Posted: Sun Mar 11, 2007 8:26 pm
by willarddaniels
Holding the spark for longer then .5 seconds can damage the circuitry in a stun gun, but the manufacturers still give descriptions of what happens to a victim if they receive a 3-5 second blast.
Check eBay, you can get a 100-200kV for $15-20
Furthermore, yup- what they said (A-98, fom)

Posted: Sun Mar 11, 2007 8:31 pm
by crazyfreak0075
Hey though if you cant get a stun gun in your area, think about trying a camera flash setup.

Posted: Sun Mar 11, 2007 8:46 pm
by SpudBlaster15
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Posted: Sun Mar 11, 2007 8:56 pm
by willarddaniels
Stun guns do not actually output much more voltage than BBQ piezoelectric igniters, and I dont see what advantages they really have, other than the novelty aspect. I dont think my BBQ igniter has misfired, ever.
Yes, they do produce more voltage. 20,000 does not equal 100,000+. You can produce sharper and more sparks when you offload the valtoage stored in the capacitors in a stun gun.
Math is math: 2<10+
I have never heard of either mis-firing. A mis-fire is when it fires when it is not supposed to. I've never seen either of these ignition sources mis-fire. My stungun has only not fired when I've needed to change the battery. When a piezo doesn't fire, you need a new piezo.

Posted: Sun Mar 11, 2007 9:03 pm
by SpudBlaster15
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Posted: Sun Mar 11, 2007 9:27 pm
by fom
A misfire is defined as:

# an explosion that fails to occur
# fail to fire or detonate; "The guns misfired"

Posted: Sun Mar 11, 2007 9:41 pm
by frankrede
or under 10 times;)
But that was a defective one

Posted: Mon Mar 12, 2007 12:51 pm
by willarddaniels
I am going to rant a bit here...
I am usually a lot more understanding and patient than this, but SB15 -you are really missing the point of my post.

I apologize if my post was confusing, but yes, I understand the concept of misfire. Thank you all for opening your webster's and defining the term. I was obviously focusing on the aspect of the gun failing to fire as a result of a fault in the ignition system, comparing the two ignition sources- as was requested.
If you guys flame me for answering a question without going into detail of every aspect and providing thermoreactive computations and dielectric breakdowns, flame me all the more. It just shows your own anal retentiveness and inability to break something complex down into something that is simple and easy for others to understand.

Furthermore, when I say math is math, it does not mean that I believe that electricity behaves in a linear, one-dimensional way. I am stating that regardless of how long a spark is, You can get a hotter and more sparks from a 100,000+ volt source than that from a 20,000 volt. And no, I am not going to get into a dispute over how much voltage a stun gun actually puts out.

On my cannons, I usually use a piezo because of their cost, reliability and ease of operation. The biggest drawback of a stungun is having to replace/recharge batteries. I do use them on bigger cannons and where remote firing is desired. But, yeah, they are mainly for the 'I use a stun gun. nyeah nyeah."

Posted: Mon Mar 12, 2007 5:45 pm
by SpudBlaster15
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Posted: Tue Mar 13, 2007 12:07 am
by willarddaniels
LosBuenos, I hope that the meaningful posts in your thread provided you some good feedback. I apologize to you for my rant and possibly taking away from the answers you were seeking, with real intent.

****
Again, I apologize for any confusion I may have caused. It sorrows me that some are not willing to accept that apology or to look objectively at what is being said. Also, I will restate that I am not wanting to get into a debate over any of these items.

I have never claimed to be an expert on anything in these forums and I try to help those out who are seeking advice and to provide easy to comprehend answers to direct questions. I am not always successful, and I apologize for being a frail human. This is what I view this forum to be; it is a way for people to collaborate with others who share similar interests.

SpudBlaster15, I will try to be more clear in future posts, especially in the areas you are passionate about. I hope you did not take my rant personally, it really was not intended that way. In my blindness, I tripped over my own words instead of thinking them through... one reason ranting isn't always a good thing to do.
I respectfully ask you to be more objective in how you comprehend what others are trying to say, in the future.

Posted: Tue Mar 13, 2007 12:52 am
by SpudBlaster15
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse potenti. Sed dictum lacus eu nisl pretium vehicula. Ut faucibus hendrerit nisi. Integer ultricies orci eu ultrices malesuada. Fusce id mauris risus. Suspendisse finibus ligula et nisl rutrum efficitur. Vestibulum posuere erat pellentesque ornare venenatis. Integer commodo fermentum tortor in pharetra. Proin scelerisque consectetur posuere. Vestibulum molestie augue ac nibh feugiat scelerisque. Sed aliquet a nunc in mattis.

Posted: Tue Mar 13, 2007 6:05 am
by Hotwired
I don't really see a benefit in a stungun spark over piezos aside from having a softer trigger and a few lights and switches on the side.

How many sparks are used for fuel combustion in engines? One.

Will a spark that exists for a longer period of time cause fuel to burn faster? No. The fuel in the vicinity of the initial spark is already gone.

Does it make a *hotter* spark? Well look at it this way: use a match and a blowtorch to ignite separate rooms filled with gas. Which one won't cause it to explode?