[PCB_FORUM] Re: Reverse engineering using CAM 350 tool
- From: "Mitch S. Morey" <cadpro2k@xxxxxxxxxx>
- To: icu-pcb-forum@xxxxxxxxxxxxx
- Date: Wed, 23 Jun 2004 08:20:24 -0700 (PDT)
Hi Jim,
You've got a problem if you're intending to go as far as the schematic for
a netlist. That you'll be building from scratch, and you'll be spending
the extra time trying to 'sync' it to the layout. That will probably
account for 70-80% of your time if you go that route. I'd done plenty of
reverse (or inverse) engineering of layout. Never wanted to go for
schematic connectivity, and as never asked for it. If you've got the
gerbers and a 'generic, "was" built BOM' you're set. The gerbers will
transfer into Allegro fairly easy (might take a little trial and error to
determine the settings), and cleanup is all that's required past that.
Cleanup most likely will involve that plane layers, but that's what
gerbers give you.
As for connectivity, I don't see the need unless you're being paid the
extra cash to make it happen, and I do hope this is a moonlighting job.
Good day.
Mitch
>
> Hey folks,
> I reviewing a large opportunity to reverse engineer a few hundred
> obsolete PCB layout designs. Each design has different available data
> files. Some only have a pdf drawing of the etch and board dimensions.
> Others have unkown originated gerber files and apertures lists. I have
> downloaded the CAM350 tool and am currently undergoing learning that
> tools processes and capabilities. I was wondering if any of you out
> there have much experience with reverse engineering, the CAM 350 tool or
> could recommend alternative tools. The idea output would be to reverse
> engineer to create a Cadence Concept HDL schematic, BOM, full netlist,
> and layout the board for availability for fabrication and assembly.
> Any input would be appreciated.
> Thanx in advance.
>
> Jim S. Wages / SR. PCB Layout Designer
> (919) 484-2963
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