Homebrew PCBs

Dne 03. 01. 2013 04:48, pis(e Jeff Heiss:
>
> What is plasma eating?
>
No standard technical term, I think. I meant with it using constant 
spark of such strenght that its plasma vaporizes copper electrode - thin 
wire in PCB hole. By controlling the timng and current one could control 
amount of copper.





>
> Jeff
>
> _____
>
> From: Homebrew_PCBs@yahoogroups.com 
> <mailto:Homebrew_PCBs%40yahoogroups.com> 
> [mailto:Homebrew_PCBs@yahoogroups.com 
> <mailto:Homebrew_PCBs%40yahoogroups.com>]
> On Behalf Of brane2
> Sent: Wednesday, January 02, 2013 8:24 PM
> To: Homebrew_PCBs@yahoogroups.com <mailto:Homebrew_PCBs%40yahoogroups.com>
> Subject: Re: [Homebrew_PCBs] Re: plating holes with an exploding wire
>
> Dne 02. 01. 2013 23:29, pis(e Charles R. Patton:
>
> <SNIP>
> >
> > "plated" through hole. But I've been a electronics designer long enough
> > to be skeptical of simple statements. Simple designs could have amazing
> > ways of failing. So one wire explodes OK, but will the next 1000 wires
> > do so?
> >
> Monitoring the current through exploding wire might give you a clue.
>
> Also, plasma eating might offer much more controll of the process over
> simple explosion.
>
> > Reply via web post
> >
> <http://groups.yahoo.com/group/Homebrew_PCBs/post;_ylc=X3oDMTJxNzd0dDhuBF9TA
> zk3MzU5NzE0BGdycElkAzQ1MDUzNjEEZ3Jwc3BJZAMxNzA1MDgzMjkxBG1zZ0lkAzMxMjI5BHNlY
> wNmdHIEc2xrA3JwbHkEc3RpbWUDMTM1NzE2OTM1Ng--?act=reply
> <http://groups.yahoo.com/group/Homebrew_PCBs/post;_ylc=X3oDMTJxNzd0dDhuBF9TA
> zk3MzU5NzE0BGdycElkAzQ1MDUzNjEEZ3Jwc3BJZAMxNzA1MDgzMjkxBG1zZ0lkAzMxMjI5BHNlY
> wNmdHIEc2xrA3JwbHkEc3RpbWUDMTM1NzE2OTM1Ng--?act=reply&messageNum=31229>
> &messageNum=31229>
> > Reply to sender
> > <mailto:crpattoniii@... <mailto:crpattoniii%40gmail.com> 
> <mailto:crpattoniii%40gmail.com>
> ?subject=Re%3A%20%5BHomebrew_PCBs%5D%20Re%3A%20plating%20holes%20with%20an%2
> 0exploding%20wire>
> > Reply to group
> > <mailto:Homebrew_PCBs@yahoogroups.com 
> <mailto:Homebrew_PCBs%40yahoogroups.com>
> <mailto:Homebrew_PCBs%40yahoogroups.com>
> ?subject=Re%3A%20%5BHomebrew_PCBs%5D%20Re%3A%20plating%20holes%20with%20an%2
> 0exploding%20wire>
> > Start a New Topic
> >
> <http://groups.yahoo.com/group/Homebrew_PCBs/post;_ylc=X3oDMTJlbHQyc2xuBF9TA
> zk3MzU5NzE0BGdycElkAzQ1MDUzNjEEZ3Jwc3BJZAMxNzA1MDgzMjkxBHNlYwNmdHIEc2xrA250c
> GMEc3RpbWUDMTM1NzE2OTM1Ng-->
> > Messages in this topic
> >
> <http://groups.yahoo.com/group/Homebrew_PCBs/message/31003;_ylc=X3oDMTM2OGdk
> ZDZtBF9TAzk3MzU5NzE0BGdycElkAzQ1MDUzNjEEZ3Jwc3BJZAMxNzA1MDgzMjkxBG1zZ0lkAzMx
> MjI5BHNlYwNmdHIEc2xrA3Z0cGMEc3RpbWUDMTM1NzE2OTM1NgR0cGNJZAMzMTAwMw-->
> > (34)
> >
> > Recent Activity:
> >
> > * New Members
> >
> <http://groups.yahoo.com/group/Homebrew_PCBs/members;_ylc=X3oDMTJmbTQ5ZmVpBF
> 9TAzk3MzU5NzE0BGdycElkAzQ1MDUzNjEEZ3Jwc3BJZAMxNzA1MDgzMjkxBHNlYwN2dGwEc2xrA3
> ZtYnJzBHN0aW1lAzEzNTcxNjkzNTY-?o=6>
> > 18
> >
> > Visit Your Group
> >
> <http://groups.yahoo.com/group/Homebrew_PCBs;_ylc=X3oDMTJlM2Y0NmphBF9TAzk3Mz
> U5NzE0BGdycElkAzQ1MDUzNjEEZ3Jwc3BJZAMxNzA1MDgzMjkxBHNlYwN2dGwEc2xrA3ZnaHAEc3
> RpbWUDMTM1NzE2OTM1Ng-->
> >
> > Be sure to visit the group home and check for new Links, Files, and
> > Photos:
> > http://groups.yahoo.com/group/Homebrew_PCBs
> > Yahoo! Groups
> >
> <http://groups.yahoo.com/;_ylc=X3oDMTJkaDNlbjQ4BF9TAzk3MzU5NzE0BGdycElkAzQ1M
> DUzNjEEZ3Jwc3BJZAMxNzA1MDgzMjkxBHNlYwNmdHIEc2xrA2dmcARzdGltZQMxMzU3MTY5MzU2>
>
> >
> > Switch to: Text-Only
> > <mailto:Homebrew_PCBs-traditional@yahoogroups.com 
> <mailto:Homebrew_PCBs-traditional%40yahoogroups.com>
> <mailto:Homebrew_PCBs-traditional%40yahoogroups.com>
> ?subject=Change%20Delivery%20Format:%20Traditional>,
> > Daily Digest
> > <mailto:Homebrew_PCBs-digest@yahoogroups.com 
> <mailto:Homebrew_PCBs-digest%40yahoogroups.com>
> <mailto:Homebrew_PCBs-digest%40yahoogroups.com>
> ?subject=Email%20Delivery:%20Digest>
> > . Unsubscribe
> > <mailto:Homebrew_PCBs-unsubscribe@yahoogroups.com 
> <mailto:Homebrew_PCBs-unsubscribe%40yahoogroups.com>
> <mailto:Homebrew_PCBs-unsubscribe%40yahoogroups.com> 
> ?subject=Unsubscribe>
> > . Terms of Use <http://docs.yahoo.com/info/terms/> . Send us Feedback
> > <mailto:ygroupsnotifications@yahoogroups.com 
> <mailto:ygroupsnotifications%40yahoogroups.com>
> <mailto:ygroupsnotifications%40yahoogroups.com>
> ?subject=Feedback%20on%20the%20redesigned%20individual%20mail%20v1>
> > .
> >
> >
>
> [Non-text portions of this message have been removed]
>
> [Non-text portions of this message have been removed]
>
> 



[Non-text portions of this message have been removed]