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	Sat, 14 Jan 2017 06:48:15 -0800 (PST)
Date:	Sat, 14 Jan 2017 15:48:13 +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 --> gerber drill file
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> 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/

No, not pcb or pcb-rnd. I mentioned how could be represented in a well defined general manner but do not know about current state.

Then there is the question if there is any standard method to make slots in the output to board manufacturer? Gerber files? Or drill files?

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