Homebrew PCBs

You might try the demo version of WinQcad.  I believe it is limited 
to less than 500 pins.  It outputs G Code for milling boards.

http://www.winqcad.com/

Bob

> 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
> 
> 
> 
> 
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> 
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> 
> 
> 
> 
>