Re: Can crushing (fwd)

["High Voltage list" <hvlist@xxxxxxxxxx>]

Original poster: <sroys@xxxxxxxxxxxxxxxxx>



---------- Forwarded message ----------
Date: Tue, 22 Mar 2005 19:53:34 -0800 (PST)
From: Peter Lawrence <Peter.Lawrence@xxxxxxx>
To: hvlist@xxxxxxxxxx
Subject: Re: Can crushing (fwd)

Colin,
      my math is already suspect (!), but it sounds like you're half way
there to a coin-shrinker, which IIRC takes 4000 to 8000 J.

personally I'll probably pass on trying a can-crusher or coin-shrinker,
if a cap blows you're in big do-do unless you've build a welded steel
containment box, but looking at others' web pics its pretty cool...

I wonder whats the technology in the defib caps verses MMC caps
	.5 * 35   * 6**2   -> 630 J
	.5 *  .15 * 1.5**2 ->   0.17 J
it would take an enormous number of MMC caps to build a coin-shrinker or
even a can-crusher...


-Pete Lawrence.



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>---------- Forwarded message ----------
>Date: Tue, 22 Mar 2005 18:15:23 -0000
>From: colin heath <colin.heath4@xxxxxxxxxxxx>
>To: High Voltage list <hvlist@xxxxxxxxxx>
>Subject: Re: Can crushing (fwd)
>
>hi peter/all,
>                i have 4 defib caps here at 35uf at 6kv so they should give
>good results yes?
>i was thinking of possibly a ring launcher also.
>cheers
>colin
>----- Original Message -----
>From: High Voltage list <hvlist@xxxxxxxxxx>
>To: hvlist <hvlist@xxxxxxxxxxxxxxxxx>
>Sent: Tuesday, March 22, 2005 5:27 PM
>Subject: Re: Can crushing (fwd)
>
>
>> Original poster: <sroys@xxxxxxxxxxxxxxxxx>
>>
>>
>>
>> ---------- Forwarded message ----------
>> Date: Tue, 22 Mar 2005 12:03:44 +0800
>> From: Peter Terren <pterren@xxxxxxxxxxxx>
>> To: High Voltage list <hvlist@xxxxxxxxxx>
>> Subject: Re: Can crushing (fwd)
>>
>> > From: Gomez Addams <gomez@xxxxxxxxxxxx>
>> > However, series vs. parallel isn't entirely irrelevant in can crushing,
>> > coin crushing, and other pulse-discharge phenomena, since peak current
>> > is often as important or more so than total energy.
>>
>> .. and even more important (although related) is di/dt. for can crushing.
>> Add long wires or use electrolytics at the same energy and the cans won't
>> crush.
>>
>> Peter
>>
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