SpudFiles

OK, I have read the wiki article, and I believe that I will be able to build a camera flash ignition system for my upcoming project. My one concern is that I have heard this type of system is very dangerous, and the risk of a shock is very high. Can someone answer the following questions for me:

1) Why is this type of system considered dangerous, and why is the risk of a shock high?

2) How can I prevent myself from being a victim of a shock?

3) When taking apart the camera and assembling the ignition system, what parts of the camera internals should not be touched? Is there even a risk of getting a shock just by accidentally touching the camera internals? How can I prevent getting shocked while I build?

Further questions may arise while I am constructing this, and I will just post them in this thread. Any other miscellaneous tips or advice that you may have would be greatly appreciated.

Thanks

It's not that dangerous; it makes you flex muscles randomly and if you zap someone they kind of spaz out for a minute or so, but it's not a big deal. When you're taking one apart and modifying it, it's highly likely that you'll zap yourself. I did several times on my first one, so expect it.

try not to scream when you shock yourself. i did and my dad thought my arm was cut off or something

your ok, i wired 10 together, zaped myself and im still here

sandman wrote:your ok, i wired 10 together, zaped myself and im still here

why would you do a crazy thing like that??

I highly doubt he wired 10 together correctly.
That could be lethal.


Take the battery out and use a screw driver to touch the leads on the flash bulb to empty the capacitor.

rail gun, and yes i did it right

I used a wrench to touch the leads, which, I learned the hard way, can still shock you after the battery is out. If you don't get shocked at least once then you are very lucky.
It's ~300v, which isn't much, but the current is higher, so it hurts more than a grill sparker. It also persists longer...

Thanks for the replies; though I wasn't exactly looking for advice like

mopherman wrote:try not to scream when you shock yourself. i did and my dad thought my arm was cut off or something

or

noname wrote:It's not that dangerous; it makes you flex muscles randomly and if you zap someone they kind of spaz out for a minute or so, but it's not a big deal. When you're taking one apart and modifying it, it's highly likely that you'll zap yourself. I did several times on my first one, so expect it.

But anyways, frankrede, if I do this, will the circuitry be safe to touch, and can I expect to avoid a shock?

Thanks

Yeah, disconnect the AA battery then short out the big cap with some piece of metal (screwdriver works very well), or a resistor if you want to avoid damaging the cap..

Another option is to connect a Multimeter to the cap while you're working so you'll see instantly if it is charged or not.

Oh, and the cap makes a loud "pop" when it discharges through a short, dont freak out.

Will any ignition coil work for this set up or is their a certain one that i should get.

thanks kris

I've been shocked by one a few times it left a little burn mark on my hand but it doesnt really hurt

OK, here is what my setup should look like so far (it is copied from the wiki, but altered to include everything, and it looks cleaner too )

<a href="http://s94.photobucket.com/albums/l112/ ... pg">Camera Flash Ignition Setup</a>

Anyone see any apparent problems? Comments are welcome (and appreciated!)

Thanks

Just touching the capacitor (the large black cylinder) once may not do it. I had to short one out about 3 times with a screw driver before it was completely dead.
So, what I do when I mess with cameras is I take the case apart part way, and dunk the whole think in a bucket of water. It shorts the cap out, and it doesn't fry anything. I have done this about a half dozen times, and haven't been shocked once.
Of course, if this is a nice Nikon or something that you intend on using as a camera, this may get water inside somewhere you don't want it. So, just use this method if you are just after the flash circuitry.

pyrogeek wrote:Just touching the capacitor (the large black cylinder) once may not do it. I had to short one out about 3 times with a screw driver before it was completely dead.
So, what I do when I mess with cameras is I take the case apart part way, and dunk the whole think in a bucket of water. It shorts the cap out, and it doesn't fry anything. I have done this about a half dozen times, and haven't been shocked once.
Of course, if this is a nice Nikon or something that you intend on using as a camera, this may get water inside somewhere you don't want it. So, just use this method if you are just after the flash circuitry.

hmm, this is very interesting... I am after only the flash circuitry. Are you sure that it does not do any damage to the camera internals? Also: Is there any chance that the camera will retain the charge in the capacitor, and would be able to shock me even after it was dunked in the water?

Once again, sorry for all of these questions. I only have the most basic understanding of electronics, and I am just trying to insure that this build goes flawlessly.