Homebrew PCBs

draw your polygon with the poly tool, name it gnd (or what ever name 
you are using for ground) then route. You will see traces run though 
the poly. I've never liked how the resulting traces looked in the gnd 
poly so I've not made a board that way.

you can increase the size of a via by changing the drill size but 
that leaves the narrow pad.  Its not immediately obvious how to get a 
big "pad" and small drill for via.

--- In Homebrew_PCBs@yahoogroups.com, "joshdewinter" 
<joshdewinter@y...> wrote:
> Hi all.
>   Does anyone know how to make Eagle make bigger vias? Someone 
> pointed out a ULP script within Eacgle that allows you to chang the 
> diameter of the insides of vias, but I need to change the outside 
> diameters.  (probably right in front of me).
>   Also, I have an RF project that I'm building, and I need the 
bottom 
> side of the board to be all copper ground plane, except where 
traces 
> run.  Does anyone know how to get Eagle to do this?
> 
> Thanks
> 
> Josh