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| Binder17 |
 Posted: 12/29/2006 17:56 PM Post subject: Pulse Sparking System |
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Corporal
Joined: 23 Dec 2006
Posts: 75
180.21 Spud Bux
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Today I put together a circuit that I am going to use in my cannon. I used an ignition coil out of an old car, condensor, and 12 volt power source.
After shocking the crap out of myself several times I got it set up right. When pressing and holding the firing button it sparks repeatedbly until you let off. This was achieved by wiring a strobe circuit to it. A capacitor controls how much of a spark I get each time. I will post a diagram as soon as I can.
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| medievalman |
| Posted: 12/29/2006 18:29 PM Post subject: |
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Captain
Joined: 05 Dec 2006
Posts: 319
23.46 Spud Bux
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| that sounds interesting, i would like to see exactly how it works, but what is the point of having multiple sparks, AFTER the fuel is ignited, wouldn't one be enough?
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| Binder17 |
| Posted: 12/29/2006 18:38 PM Post subject: |
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Corporal
Joined: 23 Dec 2006
Posts: 75
180.21 Spud Bux
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It was an easy modification so I went with it. I guess just incase the first spark fails for some reason. It could also lead to an automatic one day when I figure it out. You can also take it off the cannon and shock someone if they are bothering you. 
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| Insomniac |
| Posted: 12/29/2006 18:55 PM Post subject: |
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Colonel
Joined: 18 Dec 2006
Posts: 722
257.76 Spud Bux
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And I suppose it looks cooler when you show off the ignition system to your friends. 
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| Binder17 |
| Posted: 12/29/2006 19:04 PM Post subject: |
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Corporal
Joined: 23 Dec 2006
Posts: 75
180.21 Spud Bux
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| Of course. You wave them over and tell them to hold the insulated end of the wire and when you spark it it arcs from the metal part to the victims finger. It can arc about an inch.
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| Insomniac |
| Posted: 12/29/2006 19:08 PM Post subject: |
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Colonel
Joined: 18 Dec 2006
Posts: 722
257.76 Spud Bux
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| How bad does it shock you??? Like a bbq sparker or worse. I made a capacitor out of alfoil and a flat piece of plastic, gives a short, bright spark, and even though it is short it HURTS. lol
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| Binder17 |
| Posted: 12/29/2006 19:14 PM Post subject: |
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Corporal
Joined: 23 Dec 2006
Posts: 75
180.21 Spud Bux
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| Its much worse than a bbq igniter. About 10,000 volts in one spark.
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| benstern |
| Posted: 12/29/2006 19:16 PM Post subject: |
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Donating Member
Joined: 21 Sep 2005
Posts: 904
157.93 Spud Bux
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| How did you come up with that number?
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| Binder17 |
| Posted: 12/29/2006 19:22 PM Post subject: |
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Corporal
Joined: 23 Dec 2006
Posts: 75
180.21 Spud Bux
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| According to information about automotive ignition coils on various websites.
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| Binder17 |
| Posted: 12/30/2006 19:59 PM Post subject: |
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Corporal
Joined: 23 Dec 2006
Posts: 75
180.21 Spud Bux
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| I checked today and found out that as much as 20,000 volts can be released directly from the coil using a 12V power source. AS long as it is wired right it will be safe. I need to get some good insulated wire.
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| markfh11q |
| Posted: 12/30/2006 20:08 PM Post subject: |
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Magic Dust Man
Joined: 06 May 2006
Posts: 1584
60.70 Spud Bux
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I've got some flyback wire, (40kv rated), you can use. Not much, but all you have to do is use it near the high-probability contact areas, right? 
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| frankrede |
| Posted: 12/30/2006 21:24 PM Post subject: |
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Sangheili
Joined: 20 Jul 2006
Posts: 3003
561.70 Spud Bux
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| Insomniac wrote: | | How bad does it shock you??? Like a bbq sparker or worse. I made a capacitor out of alfoil and a flat piece of plastic, gives a short, bright spark, and even though it is short it HURTS. lol | how would you make that?
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| markfh11q |
| Posted: 12/30/2006 22:31 PM Post subject: |
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Magic Dust Man
Joined: 06 May 2006
Posts: 1584
60.70 Spud Bux
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| All a capacitor is is two pieces of conductive material separated by a non-conductive material.
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| Insomniac |
| Posted: 12/30/2006 23:03 PM Post subject: |
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Colonel
Joined: 18 Dec 2006
Posts: 722
257.76 Spud Bux
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Here it is. The spark is small but it has a fair bit of power to it. I trigger it by pushing the alfoil tab down to shorten the spark gap. It is actually 2 capacitors stacked on top of each other.
Edit: whoops forgot to attach all the pics
Edit Edit: all the pics are there now.
| Description: |
| Tell your friend to touch the shiny foil! |
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7.34 KB |
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241 Time(s) |
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| Description: |
| Bright spark!!!!! Hurts you when you zap yourself!!! Fun for all ages! lol |
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7.58 KB |
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244 Time(s) |
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| Description: |
| The capacitor in all its glory! lol its held together with tape. |
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65.87 KB |
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11 Time(s) |
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