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Date: Wed, 8 Oct 2014 21:34:27 +0200
From: Bernd Walter <ticso AT cicely7 DOT cicely DOT de>
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Subject: Re: [geda-help] Panelizing howto or examples?
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On Wed, Oct 08, 2014 at 01:54:31PM -0400, Bob Paddock wrote:
> If the plan is to ever send a panel to a contractor to have the board
> built by machine, the panel needs to have 'waste material' around the
> perimeter of the panel.  Part of my fab notes:
> 
> Board fabricator shall place 1/4" waste material around all sided,
> with 0.125" tooling hole in each corner of the waste materiel, of each
> panel.

Hard requirement from them.
Usually they don't have to be on waste material and assembly machines
are happy with unpopulated space on just two oposite borders.
Anyway - it is not a bad thing to do it like that.

> Board fabricator shall apply a minimum of four 0.060" fiducals on
> waste material on a panel.

You should also consider having some unplated holes somewhere.
I use them to align the boards in a pogo pin test adapter.

-- 
B.Walter <bernd AT bwct DOT de> http://www.bwct.de
Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.