I would think the plastic might be distracting since it would be like looking into a mirror. Maybe two line lasers set up to provide a crosshair target?
--- In Homebrew_PCBs@yahoogroups.com, "Rick Sparber" wrote:
>
> Dennis,
>
> I can do OK with just top light and about 0.01" of clearance between board
> and drill during positioning. But it would take less concentration if I
> added a means of locating the touchdown point. Maybe a thin clear plastic
> plate would do the trick. I would just attach an L shaped piece and then let
> the drill make the hole so it would be self aligning. Hmmm.
>
> Rick
>
> -----Original Message-----
> From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
> On Behalf Of dennis.lewis5
> Sent: Saturday, February 09, 2013 2:50 PM
> To: Homebrew_PCBs@yahoogroups.com
> Subject: [Homebrew_PCBs] Re: circuit board drilling question
>
> Rick,
> Recently I did this. I cannot tell you that it was a terrific improvement.
> In my arrangement there are overhead lamps as well as the one below the
> deck. I am still experimenting but this probably would have worked better if
> the overhead lamps were dimmed a little more and the copper was not as
> reflective, maybe cleaning the board before drilling isn't the way to do it.
>
> The led I used was not specified, just claimed to be super bright white,
> 4.5v. I am running it at about 30ma., as much as I dare.
>
>
> --- In Homebrew_PCBs@yahoogroups.com, "Rick Sparber" wrote:
> >
> > Has anyone played with putting a high intensity LED pointing up
> > through the drill press table so it would be easier to see the circuit
> > board land before drilling?
> >
> >
> >
> > Rick
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
>
>
>
> ------------------------------------
>
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