Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, Piers Goodhew <piers@...> wrote:
I use Eagle 4.16, to do this, I use the Polygon button, I select the layer I want to use then I draw around the the board's edge to cover the whole board, when done I right click to stop the polygon then I click ratsnest, If you want to use it as a ground or another signal, click on the name button and rename it to the signal you want, ex. gnd or ground.
>
> Hi All,
> 
> What is the term for the process where your traces are simply  
> "outlined" by etching, and as a result, most of the copper is left on  
> the board, and you presumably use a lot less etchant (and maybe get  
> some 2D RF shielding as well).
> 
> What I'm talking about is used by SparkFun a lot, as in: http://www.sparkfun.com/commerce/images/products/00718-02-L.jpg
> 
> I suppose I have two questions really:
> 
> 1 - what do you call this?
> 2 - is there a handy one-click way to do it in major CAD packages?
> 
> PG
>