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You can buy can crushers at Costco, place your can in the opening, pull a lever and viola you have a squished can. Of course you can achieve the same results using some high voltage electronics. "First I used 4 big capacitors and then later I stepped up to 8 of those big capacitors. I fried the old SCR and then replaced it with an ED431825 that can handle 1.8 KV (1800 Volts) and 250 amps continuous and 6.5 KA peak (6500 Amps). This design started out with one MOT (Microwave Oven Transformer) then for a while it had two MOT’s. "
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April 6th, 2009
Awesome, he should try driving a coilgun with that supply. Also, I envy his ability to poke around in that case so casually, even one of those caps probably stores enough energy to kill him.
April 6th, 2009
that is pretty darn snazzy
April 7th, 2009
WOW - all that just to flatten a can.. I just stand on mine
April 7th, 2009
But he’d have to put shoes on to do that.
April 7th, 2009
wow, that’s impressive, is the coil just magnetically crushing the can?
April 7th, 2009
yes it is, by using Eddie currents, very strong, if u use a coilgun with an aluminum barrel,
the eddie current can tare it up.
It doesn’t atract another magnet.
It’s a big, powerfull device, but the designer ran into problems with the banana jacks.
I first saw it on Youtube.
April 7th, 2009
London; no. The washer it being repelled away from the coil. The can is crushed between the washer and the cinder block
April 7th, 2009
ohh, that’s what the hard drive disk is for, duh
April 7th, 2009
yep, I am making my own coillgun/can crusher/ IC frier.
Can I use some 40 volt 4600 microfarad caps wired in series to 100 or 200 volts?
I hoped to get a 22000 microfarad cap at 100 volts.(10/15 bucks on http://www.tme.eu/en)
That would be cool!!
April 7th, 2009
Alex, when building a coil gun, you would want to get the biggest current as possible through your coil for a very short instance.
short instance = less micro farad
high current = high voltage (in this case, since we are talking a shourcurcuit) i=u/r ~ Amps = voltage / resistance.
the power of your magnet feild is (i can’t remember the english word for this) amps * coil turns.
And everytime you make another turn on your coil, you increase the resistance, hence reducing the amps.
i think that is what you need to get started.
April 7th, 2009
alex, and another thing is; the higher the farad count is, the more energy is stored. but you need to make sure all the power is blowen off before the “projectile” reaches the center of the coil. if the magnetfield is still active when the projectile reaches the center, it will reduce the speed dramaticly.
i think that is about it.
April 7th, 2009
He’s pushing his luck with a 1k potential that close. He needs optocoupled switches and a remote discharge mechanism. It’s still a cool project though.
April 9th, 2009
[...] 1600 Volt Can Crusher You can buy can crushers at Costco, place your can in the opening, pull a lever and viola you have a squished can. Of course you can achieve the same results using some high voltage electronics. (tags: electronics diy) [...]
April 30th, 2009
[...] caps and a handful of other electronics. The crushing results are a bit more dramatic in one of his last can crushing experiment which used a different crushing method but as soon as this one can cut the can in half it will be [...]