Homebrew PCBs

On Fri, 02 Mar 2007 15:45:37 +0100, docstein99 <docstein99@...>  
wrote:

> I thought co2 lasers were powerful enough to obliterate the copper
> itself???  Why bother spraying and etching, when it could simply be set
> to burn drill-holes, and burn the copper all on the same machine.


because once the copper is gone, it's hard to stop and the fr4 will go too.
It's like cutting a piece of wood sitting on a chunk of styrofoam, using  
an axe.

It has been done commercially, but it's not something one can cobble  
together on a weekend.

ST