Message-ID: <50869377.4020301@gmail.com>
Date: Tue, 23 Oct 2012 14:54:15 +0200
From: onetmt <onetmt AT gmail DOT com>
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To: geda-user AT delorie DOT com
Subject: Re: [geda-user] Pin hole size
References: <20121023111430 DOT GY32696 AT fi DOT muni DOT cz>
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Reply-To: geda-user AT delorie DOT com

Il 23/10/2012 13:14, Jan Kasprzak ha scritto:
> 	Hello,
> 
> how can I view the size of the pin hole for a given footprint? For example,
> I want to use the following footprint:
> 
> http://www.gedasymbols.org/user/stefan_salewski/footprints/Fuse_PTC__Schurter_PFRA.300.fp
> 
> my fuse has wires about 0.9 mm thick. So I will need the holes to be at least
> 1 mm, maybe more. Is the hole size visible somewhere in pcb GUI? In the
> footprint file itself, there are pins defined as follows:
> 
>         Pin [-10040 0 5945 2000 7945 4370 "1" "1" ""]
>         Pin [10039 0 5945 2000 7945 4370 "2" "2" ""]
> 
> But I don't know which number is the hole size, and in what units.

You should definetly have a look at this:

http://www.brorson.com/gEDA/land_patterns_20070818.pdf

An additional information is that measure units are 100th of mils for
your case, micron in following case:

	Pin [-35528um 0 ...


-- 
Hofstadter's Law:
"It always takes longer than you expect, even when you take into account
Hofstadter's Law."