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Date: Wed, 16 Jul 2014 14:32:29 -0400
Message-Id: <201407161832.s6GIWTDV006574@envy.delorie.com>
From: DJ Delorie <dj AT delorie DOT com>
To: geda-user AT delorie DOT com
In-reply-to: <53C6B815.10108@sonic.net> (message from Dave Curtis on Wed, 16
	Jul 2014 10:36:21 -0700)
Subject: Re: [geda-user] Octagon flag on Pad[]
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> I guess I don't understand the logic of not allowing the octagon flag on
> Pad[]'s, since they are allowed on Pin[]'s.  It seems to me that all the
> logic should be there to draw them -- wouldn't they be handled the same
> as a square aperture, even when the pad is parallel to the X/Y axes?

Most pads are not squares, just rectangles.

> How are footprint slots communicated to the fab house?  Outline layer
> paths are routed after fab, but slots would need to be routed
> pre-plating.  Would another mechanical layer be added that contains slot
> routing information?  And do you communicate slot outlines or a toolpath
> and tool diamater?

Typically the humans talk to each other and discuss what form the info
needs to be in.  I suspect they'd want a separate gerber for each type
of milling operation - plated slots, unplated slots, board outline,
etc.