Homebrew PCBs

Neat idea, but I gotta ask...does the light down below collect any
dust from the drilling or does a vacuum pretty much
take care of that.

Charlie

On Thu, 03 Jan 2013 00:44:28 -0000 "bebx2000" <bebx2000@...>
writes:
  


Rick,

I think you misinterpreted the arrangement. The drilling is down from the
top, but the light is shining up through the bottom of the board. The
board is placed on top of the project box which has the laser pinhole
setup. I use the Eagle drill-aid.ulp which provides a smaller etched hole
than the regular hole. The board is positioned (looking down on the
board) so that when light appears in a hole that is where the drill will
penetrate. This has improved my depth perception so that now I can pretty
much drill a straight line of holes.

Baxter
--- In Homebrew_PCBs@yahoogroups.com, "Rick Sparber" <rgsparber@...>
wrote:
>
> Baxter,
> 
> Our approaches are rather different. I'm hoping to shine light through
the
> board so the pad feature is clearly outlined. I figure that would be
more
> precise and clearer than shining lights down on the board from above
and
> seeing the reflected light. From above I would be unable to shine
straight
> down so would get shadows. From below I can shine straight up. Hope to
have
> this mod tested today.




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