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        Sat, 14 Jan 2017 09:06:21 -0800 (PST)
Date: Sat, 14 Jan 2017 18:06:18 +0100
From: "Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] thru hole slots in PCB
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On Sat, 14 Jan 2017 15:01:11 +0100
Jonatan Åkerlind <jonatan AT akerlind DOT nu> wrote:

> On Fri, 2017-01-13 at 17:21 +0100, Nicklas Karlsson
> (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com] wrote:
> > If it was possible to draw board outline as a solid polygon and make
> > cut out then board should be well defined.
> > 
> > Even though board is defined as a solid shape as a real board is it
> > may still of course make sense to show only outline, maybe even in
> > gerber. It is claimed here https://sourceforge.net/p/gerbv/feature-re
> > quests/89/ G85 is used to define slots in Excellon drill file but for
> > CNC g-code is a boring cycle which I am not totally sure what it do.
> > 
> > I know Igor have make some work in pcb-rnd to make layer more general
> > but have not yet had time to look at it.
> > 
> 
> I have used an approach of putting two vias in pcb, then changing the
> drill file to add route commands (using M15/M16 IIRC) between those
> vias. I also found and refactored a patch for gerbv to support viewing
> of this. Have ordered boards with slots like this, which turned out as
> intended. This was done approximately two years ago and I have not
> since made any new boards, so I am not familiar with the recent state
> of pcb or pcb-rnd. 
> The gerbv patch can be found here:
> https://sourceforge.net/p/gerbv/patches/56/
> 
> -- 
> Jonatan Åkerlind
> +46702002897
> 


I could see different:
G85 multiple drilled holes, this does not feels like a very good idea.
A NC Route file, with g-codes M48, Txx, G90, M16, M15 but have no time to read thru what they do right now.

g-code feels like a good idea for manufacturing but what manufacturer say I have no idea.