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NEVER DO THIS! my story. Answered

so, i have been working on making a coil gun. and for that, i need a cap bank. so i took twenty caps from cameras and put them in parallel. it was a lot of capacitors. i went to go charge them up late at night and believe me, that was a big mistake. i flip the switch and started waiting for the light to come on. until, i cap exploded. i couldn't hear for almost 15 seconds. it scared the crap out of me, and i am sure that it would of hurt if i touched it. don't do this. i got in big trouble from my mommy.lol.

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REA

9 years ago

your fail amuses me! tell another.

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Derin

10 years ago

Tsk means Turkish Armed Forces

I think you've been beaten, check out the latest pocket sized entry, he's going to have some thread to write about...

Did you do it backwards or something?!

Uhoh, need some kind of control mechanisms on that...

Oh and top of every capacitor a heavy schedule pipe with a concrete plug sitting in it, just so when one blows there'll be a nice signal in the form of concrete plugs shooting into the sky, possibly write on them so people will get help when they find them. Yes this is exactly the reason I can't be trusted to do anything...

Just so the nieghbors don't call the cops

Tsk tsk tskkkkkkkk! Hahaha. What did your mommy do to you?

:-)

Tell us the story. :D

so did it explode or just spark When attempting my first coil gun I didn't have an scr, I just wanted to test if my charging circuit worked and the spark was like BOOOOMMMMM, arc welded all of the aligator clips together, espescially the 2 in contact as a switch... I had to get new aligator clips :'( I'd say aligator clips are one of the most uselful prototyping item actually breadboards and aligator clips are about the same, just that aligator clips are more compatible, but not as neat or compact.

didnt i say that would happen in krusers thread on how to build a coil gun? once again, not heading the wisdom of tech-king has brought disaster.

Yes, do be careful. Some capacitors, especially electrolytics in metal cans, can be very dangerous when they explode (the chemicals inside are not all that pleasant either, particularly if gotten in the eyes.

Sounds like you had experience. lol

I have seen some pretty "big" capacitors blow, but fortunately for me, they were not encased in metal...but I can certainly imagine what it would be like if they had been. I have seen enough "cardboard" caps, spew hot liquid out of them, and wax caps, blow hot wax all about. And one ceramic cap (small one). I blew a resistor once too, when I was a TOTAL electronics noob. It acted like a fuse thankfully or I could have caused a fire *sigh*. House current, I discovered, is nothing to PLAY with :-)

Tsk tsk

was the one that blew rated for a lower voltage than the others?