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| brogdenlaxmiddie |
 Posted: 06/02/2008 14:58 PM Post subject: Brog.- Camera Flash Ignition help |
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Lieutenant Colonel
Joined: 22 Jul 2007
Posts: 467
642.56 Spud Bux
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Hey guys,
So, I'm starting to build my first advanced combustion gun, named 'em Big Bird... But thats not what this is about. I wanted to use a camera flash ignition so I bought the camera, took it apart, and now have a problem. I hadn't really realized that I would need to put a piece of steel wool in the chamber everytime I want to shoot. So, Is there a way of doing this without the wool? The only thing that I could really think of was maybe figuring a way to use a spark plug or something... and then having the camera flash go into the spark plug, to make the spark in the chamber.
1- What in the world should I do for the Ignition?
2- Would a spark plug work like I described?
2a- How would I have to wire it?
3- What else do recommend using to create a spark? I don't want to buy a stun gun so thats out of the question.
Thanks guys!- Tedder |
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| SpudFarm |
| Posted: 06/02/2008 15:03 PM Post subject: |
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Hybrid Guy
Joined: 04 Nov 2006
Posts: 2048
1075.22 Spud Bux
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just the flash circuit will not give you a arc.
if you just simply run the camera capacitor through an ignition coil you get a nice fat orange spark at about 1" |
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| brogdenlaxmiddie |
| Posted: 06/02/2008 15:04 PM Post subject: |
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Lieutenant Colonel
Joined: 22 Jul 2007
Posts: 467
642.56 Spud Bux
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| Where could I get the coil? and how much would it cost? |
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| TurboSuper |
| Posted: 06/02/2008 15:05 PM Post subject: |
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Colonel
Joined: 16 Jun 2005
Posts: 661
996.50 Spud Bux
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| SpudFarm |
| Posted: 06/02/2008 15:19 PM Post subject: |
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Hybrid Guy
Joined: 04 Nov 2006
Posts: 2048
1075.22 Spud Bux
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| i payed $20 for a good one |
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| Atlantis |
| Posted: 06/02/2008 15:28 PM Post subject: |
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Brigadier General
Joined: 03 Sep 2005
Posts: 955
5047.89 Spud Bux
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| I managed without the coil as well. I just screwed two bolts into the chamber that almost touched at the end, I could screw the bolts in or out to adjust, sometimes they would slightly weld together, just needed to wiggle em apart. I didn't use the third wire either, just wired the 2 main ones into the bolts. |
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| brogdenlaxmiddie |
| Posted: 06/02/2008 15:47 PM Post subject: |
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Lieutenant Colonel
Joined: 22 Jul 2007
Posts: 467
642.56 Spud Bux
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| Ok- so I go tall that... but now theres a new problem... I was working on it and it had charged... so i took a piece of metal and put it across the capacitor... big spark... but now it won't recharge. Any ideas? |
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| jimmy101 |
| Posted: 06/02/2008 16:12 PM Post subject: |
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Major General
Joined: 28 Mar 2007
Posts: 1600
6784.04 Spud Bux
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| brogdenlaxmiddie wrote: | | Ok- so I go tall that... but now theres a new problem... I was working on it and it had charged... so i took a piece of metal and put it across the capacitor... big spark... but now it won't recharge. Any ideas? |
Where was the big spark at? If it was between the two wires on the big-ass photocap then the circuit should be OK. If the spark was between one lead of the cap and something else on the board then there is a good chance the board is toast.
Ask for a couple more cameras from your local grocery store with an in-house photolab. They usually throw them away after they take the film out.
You might want to read the SpudWIki pages on photoflash ignition.
EDIT: BTW, in the long run, a BBQ piezo or stungun is probably a better bet for an advanced gun. |
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| brogdenlaxmiddie |
| Posted: 06/02/2008 16:53 PM Post subject: |
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Lieutenant Colonel
Joined: 22 Jul 2007
Posts: 467
642.56 Spud Bux
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I think thats what im just gonna wind up doing... this crap is too confusing  |
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| rcman50166 |
| Posted: 06/02/2008 17:04 PM Post subject: |
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Major
Joined: 19 Jan 2008
Posts: 381
1022.10 Spud Bux
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| Ya. That seems like the easiest idea. The problem you had before is probably a blown capacitor. They do it all the time. Camera capacitors typically aren't very reliable. A peizo electic ignitor would seem to be fine for an advanced. Is there a reason why you want a battery based circuit? A BBQ ignitor is simple, reliable, and cheap. I would just use that. |
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| brogdenlaxmiddie |
| Posted: 06/02/2008 17:16 PM Post subject: |
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Lieutenant Colonel
Joined: 22 Jul 2007
Posts: 467
642.56 Spud Bux
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i only tryed the camera flash thing because it sounded cool.  |
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