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Date: Tue, 9 Jun 2015 17:18:15 -0400
Message-Id: <201506092118.t59LIFJS030023@envy.delorie.com>
From: DJ Delorie <dj AT delorie DOT com>
To: geda-user AT delorie DOT com
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	(geda-user AT delorie DOT com)
Subject: Re: [geda-user] Problem with BGA footprint generator
References: <CALT8Ef7A2XeK6WzZu2DZY_4iKb6V__nV7iZojzc+oP1pDF7qfg AT mail DOT gmail DOT com>
	<5576E497 DOT 3030707 AT lsol DOT ru>
	<201506091611 DOT t59GBV3f018294 AT envy DOT delorie DOT com>
	<9B9230E1-E6C0-4A6E-8BC6-F56224D32DCC AT sbcglobal DOT net>
	<1433882876 DOT 3446 DOT 7 DOT camel AT akerlind DOT nu> <CALT8Ef41-wVowr=WcHxTjkLPVcGDWp9sV1B7Zn-L7VfPCz6Fsw AT mail DOT gmail DOT com>
Reply-To: geda-user AT delorie DOT com


>      - With a 0.75mm pitch, actually getting a trace to come down
> precisely between two pads is impossible on the grid options
> available, unless you set a grid size so small that it effectively is
> a no-grid type of situation. Having arbitrary grid spacing available
> would be nice.

You can set any grid you want with the command line tool:

:SetValue(Grid,=0.375mm)

or
:setvalue grid =0.375mm

You can also edit the gpcb-menu.res or pcb-menu.res file to include
other options if you use them often enough.