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Date: Fri, 15 Aug 2014 15:12:25 -0400
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From: DJ Delorie <dj AT delorie DOT com>
To: geda-help AT delorie DOT com
In-reply-to: <5DB1AD2D-8B90-429C-B433-6C21CCD159D1@wellesley.edu> (message
	from James Battat on Fri, 15 Aug 2014 15:07:48 -0400)
Subject: Re: [geda-help] changing pad clearance after layout
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> I see that I can select all components manually on the board and
> then execute the ChangeClearSize() command (and I've been doing
> that), but I was wondering if it's possible to propagate the change
> to the 0805 footprint file to *all* 0805 components in the layout.
> Perhaps from the command line.  i.e. something that amounts to a
> smart search-and-replace for all Pad[] entries in an Element[] entry
> that has the Description "0805".

The best you can do is use the "select by name" with the "name"
switched to description (footprint name in this case) to select all
0805's, then use the :MinClearGap command to change them all.

> Also, re: best practices for making footprints -- is there an
> advantage to specifying clearance=0 vs. clearance=non-zero?

Not really.  I set clearances to industry standard minimums.