>
> By the way, I assume you're all aware of those CNC routers that will
> mechanically remove copper from a board, given a pattern.  They sell for
> as little as $10k-$15k new (I think "ready to use".)  They may be available
> used or refurbished at a considerable discount (I think a salescritter once
> told me $3-5K.)  Not exactly pocket change, but perhaps something more in
> reach of a small company or school than you expected.

I built one of these for about $150. Only problem is that the
thinnest gap I can route is about 1mm. A board layed out at
14mil tracks and 80mils spacing does look pecular!

Nic