Homebrew PCBs

Hi,
what do you think of this demo board from LPKF, 0.1 mils !! 5 tracks 
between 2 IC pins !!
http://www.lpkf.com/images/1/713-muster-einseitige-leiterplatte.jpg
Regards
Jacques


--- In Homebrew_PCBs@yahoogroups.com, "lcdpublishing" 
<lcdpublishing@...> wrote:
>
> Hi guys,
> 
> I am oh-so close to running some real boards on my CNC mill.  
Having 
> never done isolation milling I am not sure of what the process is, 
or 
> is not capable of.  
> 
> I bought a couple carbide 'V' cutters and will be giving it a try 
this 
> comming week.  I suspect the 'V' type cutters would be better than 
> trying to use a .010" or .020" diameter endmill.
> 
> Right now, with toner transfer, I can get fairly reliable results 
with 
> traces down to .012".  Anyone have any idea what can be done with 
> isolation milling?  Any suggestions, comments, advice, warnings, 
etc. 
> would all be appreciated!
> 
> Chris
>