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Date: Wed, 16 Jul 2014 10:53:56 +0100
From: "Peter C.J. Clifton" <pcjc2 AT cam DOT ac DOT uk>
To: geda-user AT delorie DOT com
Cc: DJ Delorie <dj AT delorie DOT com>
Subject: Re: [geda-user] Pin[] clearance off
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On 2014-07-15 04:40, DJ Delorie wrote:
>> If clearance on a Pin[] is set to zero, and a polygon is drawn over 
>> the
>> pad, does that have the same effect as "full" thermal? Or does that 
>> lead
>> to rendering artifacts? Should it be a negative clearance, or does 
>> that
>> cause oddments in the code?
> 
> It's better to use the thermal tool to remove the clearance, than try
> to be clever.  CAM software might detect the "zero" width space as
> violating the minimum spacing rules.

I "think" PCB handles the two such that the output is identical in both 
cases.

Peter