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Date: Mon, 26 Oct 2020 15:55:10 +0000
From: "Peter Stuge (peter AT stuge DOT se) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] PCB, 2 parts physically in the same place
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gene glick (geneglick AT optonline DOT net) [via geda-user AT delorie DOT com] wrote:
> I want to do this on purpose. One part, a 2X16 character display has 10
> connections to the PCB. Problem is, they are just holes. It is meant to
> have a 10 pin header on the PCB, and then the display gets positioned over
> the header and soldered in place.

Rather than having to deal with two footprints on top of each other I'd
recommend this:

Create one 2X16LCD footprint which has no electrical connections but
only silk lines+text and any mounting holes (Pin with attribute "hole").
I'd recommend to draw silk lines around where the electrical connections
will go.

Then place one 1x10 header footprint for the electrical connections.

That way you can have both parts in schematic and BOM without having
redundant connections in the netlist and layout, and no problems with
two footprints with electrical connections on top of each other.

In addition to local simplicity I can imagine that fabs might be unhappy
or at the very least confused with two drills on top of each other..


//Peter