Simple High-Speed photography

A place for general potato gun questions and discussions.
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JDP12
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Fri Jan 02, 2009 4:17 pm

im with frankrede... it is a massive punch in the chest- i dumped a fully charged disposable camera cap into me... felt like a hammer smacking me in the chest.

Quite an experience i tell ya :wink:
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FishBoy
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Fri Jan 02, 2009 8:27 pm

FishBoy wrote:Ok, I just set up my own system and I got a few pictures, but when I try to upload them it says "tried to upload empty file." What does this mean??
I still want to upload those pics :x
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MrCrowley
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Fri Jan 02, 2009 9:28 pm

FishBoy wrote:
FishBoy wrote:Ok, I just set up my own system and I got a few pictures, but when I try to upload them it says "tried to upload empty file." What does this mean??
I still want to upload those pics :x
Does this help?
http://www.spudfiles.com/forums/posting ... 13190.html
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FishBoy
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Fri Jan 02, 2009 9:38 pm

It's still not working, i think it's glitching somewhere. What would it mean by an empty file? I re-uploaded the pictures to a different place and tried to submit them again, but I had the same problem.
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Big Boom
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Fri Jan 02, 2009 9:56 pm

so you can't just post a link to photobucket or something until it is working properly?
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FishBoy
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Fri Jan 02, 2009 10:27 pm

Well, I don't have a photobucket acount, will Flickr work? (I'm gonna try)

http://www.flickr.com/photos/33952097@N02/3162090908/

Edited by jrrdw, repaired link
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psycix
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Sat Jan 03, 2009 3:04 pm

Now really, you should, its not like a stungun, its like being punched in the chest.
Which made me wonder how much a stungun hurts.
I have some stunguns ordered from BCarms lying around but havent tested em yet.
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MrCrowley
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Sat Jan 03, 2009 3:43 pm

psycix wrote:
Now really, you should, its not like a stungun, its like being punched in the chest.
Which made me wonder how much a stungun hurts.
I have some stunguns ordered from BCarms lying around but havent tested em yet.
They don't hurt much at all. :)
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CpTn_lAw
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Thu Jan 08, 2009 11:49 am

But a fully charged cap does.
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jimmy101
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Thu Jan 08, 2009 4:03 pm

CpTn_lAw wrote:But a fully charged cap does.
AAAAH

Not really. Of course it depends on exactly what you mean by a "fully charged cap". A 10pF cap at 10V ... you won't even feel it.

A 120uF photocap at 300+V ... might feel like getting jabed with a pin or it might feel like you got kicked in the chest ... depends entirely on what parts of your body short the cap. The most common short is across a fraction of an inch of skin. Feels like sharp jab (with an aroma of burning skin), might make the muscles in your arm spasm depending on the contact resistance. The good thing about the cap is that it discharges and turns itself "off" (unlike a 120 VAC line).

Touch one lead of the cap with one hand and the other lead with the other hand ... :shock:
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ramses
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Thu Jan 08, 2009 4:12 pm

a 2400uf cap bank charged to ~ 100 volts... *falls over*

after that I use the pocket rule.
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rp181
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Thu Jan 08, 2009 4:38 pm

Nope, if voltage stays the same, capacitance does not matter past a certain point. Its not like your going to wait there getting shocked until the bank bleeds completely. Reflex will save you =p

Unless its like the movie "taken" where two nails are stabbed in a hostage and he's forced to get shocked....
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Hailfire753
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Thu Jan 08, 2009 5:24 pm

Haha, I've had a half charged photocap discharged to my finger, and my arm mildly spazed out. I was using a 1000 volt (don't know amp) industrial wire tester (i forget the real name for it), but the camera flash was much worse.
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jimmy101
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Fri Jan 09, 2009 2:11 pm

rp181 wrote:Nope, if voltage stays the same, capacitance does not matter past a certain point. Its not like your going to wait there getting shocked until the bank bleeds completely. Reflex will save you =p
Actually, no, reflexes will usually not save you. If your reflexes save you then you really weren't in any danger to begin with. High currents will totaly confuse your nerves. Usually to the point where all your muscles spasm. The net result is you are frozen in place.

People killed because of contacting a household 120V 15AMP circuit have been found frozen in place weeks after they died.
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ramses
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Fri Jan 09, 2009 5:03 pm

even though I successfully hijacked the topic, i think i will give it back after one last comment: ac shakes you loose after a while, you get stuck on D.C.
with exceptions

and yes, you do spasm
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