Homebrew PCBs

Heck, I would even try milling a board if I could find some free 
layout software to create the milling code. I am just to darn lazy 
to go through the process of drawing in CAD or worse yet, writing 
the program by hand - my time is just too short.

Anyone have suggestions for some free software to design a PCB and 
have it output the CNC Code?

CHris




--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan" 
<stefan_trethan@g...> wrote:
> On Thu, 30 Jun 2005 15:06:41 +0200, lcdpublishing  
> <lcdpublishing@y...> wrote:
> 
> > Hi All,
> > With regard to chemical etching of boards, what chemicals or 
materials
> > are good for resist?  I know there are resist pens, but I am 
unsure of
> > what the "Ink" is actually made of.  I also know that toner, 
which is
> > primarily plastic, works as a resist.
> > Just working on some ideas for alternative ways to apply resist.
> > Chris
> 
> 
> The pens don't seem to work properly with CuCl, esp. if the pen 
isn't  
> totally fresh any more (less ink).
> 
> I tried a silver marker which puts down a really thick layer (you 
know the  
> kind for writing on black) but it didn't hold up well.
> 
> 
> Acrylic laquer works.
> 
> 
> You really should try EDM, with your CNC experience and all.
> 
> ST