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Date: Tue, 29 Jan 2013 08:44:59 +1100
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Subject: Re: [geda-user] Export rounding
From: Stephen Ecob <stephen DOT ecob AT sioi DOT com DOT au>
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On Tue, Jan 29, 2013 at 8:00 AM, Russell Dill <Russ DOT Dill AT asu DOT edu> wrote:
> I'm submitting a board that I did with gEDA PCB in metric. The export to
> imperial has caused some issues. The drill file and gerber files apparently
> round to a different number of decimal places and it causes the drills to
> wander in relation to copper.
>
> In my case, I have holes with 5 mil annular rings, which are my process
> minimum, those minimum are now violated in my exported data. Has anyone else
> run into this issue before? Have you been able to do anything to solve it?
>
> http://i.imgur.com/7arfVAK.png

Yes, I've experienced the same problem.  For my board it was annoying
but not a show stopper as no design rules were violated.
I guess that a very small code change would increase the drill
resolution to the same as the gerber resolution.