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Date: Sun, 26 Jul 2015 13:06:40 +0200 (CEST)
From: Roland Lutz <rlutz AT hedmen DOT org>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] [pcb-rnd] Release 1.0.1
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On Sun, 26 Jul 2015, gedau AT igor2 DOT repo DOT hu wrote:
> On Sat, 25 Jul 2015, Kai-Martin Knaak wrote:
>> I feel like the default library should be a simple set of ready made
>> files. These files may or even should be produced algorithmically at
>> compile time.
>
> I disagree here. There are way too many combination. This method results in 
> too many files _and_ missing files. Often through mechanisms involving "dip 
> pacakges above N pins are always wider", which is just not true. As an user I 
> find learning such custom rules, or what the N, M or W suffix really means is 
> harder and more risky (footprint-mismatch-wise) than a proper generator.

The problem here is, some footprint generators have a lot of parameters, 
e.g. for pin and pad sizes, silk line width, pin row/column distance, etc. 
With my "arthropods" generator, I found what's really necessary is a kind 
of "configuration" file which holds the parameters for one or some related 
series of footprints (see [0] for an example).

Roland


[0] https://github.com/rlutz/arthropods/blob/master/sip-dip