Simple PCB circuit-tracing technique (1 or 2 sided)

Started by msg April 8, 2006
Hello all,

Although this is certainly elementary, I thought I'd share it since it 
may help someone in a pinch; here is my simple technique to create a 
preliminary schematic from a populated 1 or 2 sided pcb:

http://ipx1.cybertheque.net/homebrew/pcb-photog/

Regards,

Michael Grigoni
Cybertheque Museum
msg wrote:

> Although this is certainly elementary, I thought I'd share it since it
Spam or merely a nonfunctional site? I get a generic parked domain sort of page.
larwe wrote:

> Spam or merely a nonfunctional site? I get a generic parked domain sort > of page. >
Sorry, I used the internal domain name on the lan, it should be http://www.cybertheque.org/homebrew/pcb-photog/ (why would I spam the newsgroup?) Michael Grigoni Cybertheque Museum
msg wrote:

> > Spam or merely a nonfunctional site? I get a generic parked domain sort > > > Sorry, I used the internal domain name on the lan, it should be > > http://www.cybertheque.org/homebrew/pcb-photog/ > > (why would I spam the newsgroup?)
People do weird things. BTW, your "revised" posting has the incorrect URL in it again! The link above works, of course...
On Sat, 08 Apr 2006 12:16:00 -0500, msg wrote:

Michael Grigoni described his method of PCB reverse engineering

> http://www.cybertheque.org/homebrew/pcb-photog/
I used a similar method: taking a picture of the trace side, editing it, flipping and possibly superimposing a photo of the component side. I then use a circuit drawing program such as Dia (it's native on Linux but has been ported to Windows, too: http://www.gnome.org/projects/dia/) to draw the schematics overlaid on the background image. Because the diagram program maintains the connectivity when elements are moved around, I can rearrange and straighten up the topology of the schematics, rats-nest like. If one could import background into a proper PCB design program such as Eagle, one should be able to get back the PCB.
przemek klosowski <przemek@tuxdotorg.instead.of.dot> writes:
> If one could import background into a proper PCB design program such > as Eagle, one should be able to get back the PCB.
gEDA's PCB had this feature in the Xaw version; we haven't gotten around to re-adding it in the latest version.