On 4/13/07, William Chops Westfield <westfw@mac.com> wrote:
>
> On Apr 13, 2007, at 10:01 AM, Vasile Surducan wrote:
>
> >> For a 2-layer board, I see 3 drill files created when I generate the
> >> gerber (274X) files -- .dri, .drd, .drl.  This is what I see in
> >> there...
> >
> > There is an ulp (available only in some newer versions of Eagle) you
> > must run.
> > It's been a while I've used Eagle so I forgot the name but I think is
> > drill-legend.ulp
> > This one will assign a predefined symbol to every via or hole you may
> > have (and for about 2000 vias will take a few minutes).
> > Also will draw a table containing the legend.
>
> Yeah, but this produces a human-readable file, rather than a cad file,
> IIRC.  I think this (plated vs non-plated) is something that varies from
> one board shop to another, and if you want consistent results, you'll
> need to ask the shop you're dealing with how THEY want things to be.

Absolutely true ! The human readable has the advantage of being
gerber, those guys are reading only gerbers...


> The separate drill files I mentioned has the advantage of being easy
> to manipulate, but will require modification of the EAGLE CAM job.
>
> (Does it seem to anyone else that there's an awful lot of the PCB
> fabrication stuff that is not nearly as automated as it ought to
> be?  There are all (way too many!) these standard file formats for
> various things, and then you get advice like "each layer should contain
> some text so that we can check layer orientation", and the filenames
> are close to random...)
>
> BillW
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