Re: gEDA-user: drill size editting in PCB

[Dan McMahill <dan@mcmahill.net>]

On Tue, Dec 07, 2004 at 01:48:05PM +0000, Karel Kulhavy wrote:
> On Mon, Dec 06, 2004 at 04:32:01PM +0100, Shahab Sanjari wrote:
> > Dear list,
> > 
> > is there a possibility to list all different drill diameters (pads / 
> > vias) and edit them after layout job is done, in order to reduce them to 
> >  those standard values that the board-house likes? This reduces 
> > production cost naturally.
> 
> However what about portability?
> 
> What if I am making a free technology design that is intended to be
> manufactured by board houses all around the world? The only option I see here
> is to leave the hole as they are and tell the board house to either round to
> nearest or to round to bigger. Any suggestion how to do it better?
 
don't push on the minimum pad/drill ratio while doing the design.  Also don't
push on the drill size / pin size ratio.  That way you'll have some extra
margin on either side of your drill size.

Then people can either run the mapping themselves or ask their vendor to
do it and have a higher chance of success.

-Dan

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