Homebrew PCBs

Thanks Stefan. I'm going to try that technique.

--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan <stefan_trethan@...> wrote:
>
> And if that isn't enough an aluminium cover plate and or suitable
> bottom doubler can be used, or so I am told.
> 
> ST
> 
> On Thu, Feb 11, 2010 at 7:43 PM, Leon Heller <leon355@...> wrote:
> > On 11/02/2010 18:29, AnnonC wrote:
> >> I'm looking for a method to deburr my ground vias to smooth the drill hole for copper plating. I do RF prototypes and the PCB has a lot of ground vias. In the past, I used 2 pass drill to drill the hole, the 2nd pass, one 1 mill smaller but it doesn't seem to help much. I can increase the diameter of the via hole up to 50 mils.
> >
> > Use sharp drills at the proper speed.
> >
> > Leon
> >
>