Dave,

Reverse engineering (if that's what you are doing...) can be done... It can
be a pain.

If you have Gerber files, you are going to get a "connected copper" netlist
but no identifiable components. This is what most board shops do to verify
the boards after manufacture.

If you have Access to Valor ODB++ data you can reconstruct the board and
netlist much easier. You would even get the reference designators and a Bill
of Materials out of that.

I have reconstructed boards from Gerber and used the data as a way to
generate a new design, it involves bringing in the data into your CAD
package and placing real components in where the pads are located and
converting the Gerber into traces and generating a netlist and checking.

I have also created netlists by looking at the schematic and numbering all
the pins and just typing it into a text editor... another option.

There is no magic bullet for this sort of design task... it's just a lot of
tedious work.

Best regards,


Bill Brooks - KG6VVP
PCB Design Engineer , C.I.D.+, C.I.I.
Tel: (760)597-1500 Ext 3772 Fax: (760)597-1510
e-mail:[log in to unmask]
http://www.dtwc.com
http://pcbwizards.com


-----Original Message-----
From: David Baldwin [mailto:[log in to unmask]]
Sent: Wednesday, December 22, 2004 8:10 AM
To: [log in to unmask]
Subject: [DC] Net List Extraction From a Blank Board

I have a blank board only, multi-layer, NO CAD data.  I need a net list
extracted.  Does anyone have any experience doing this type of thing, or
can you point me in the correct direction?

Thanks,

Dave
___________________
David Baldwin CID+
1736 S. Nevada Way
Mesa AZ  85204
(480) 539-4400
www.Baldwin-Tech.com

----------------------------------------------------------------------------
-----
DesignerCouncil Mail List provided as a free service by IPC using LISTSERV
1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF DesignerCouncil.
To temporarily stop/(restart) delivery of DesignerCouncil send: SET
DesignerCouncil NOMAIL/(MAIL)
Search previous postings at: www.ipc.org > On-Line Resources & Databases >
E-mail Archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
for additional information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100 ext.2815
----------------------------------------------------------------------------
-----

---------------------------------------------------------------------------------
DesignerCouncil Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF DesignerCouncil.
To temporarily stop/(restart) delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL/(MAIL)
Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
---------------------------------------------------------------------------------