Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Hi, I just discovered this group. I am interested in using a plotter
to directly lay down resist for pcb boards. I picked up an HP 7475A
plotter a few years ago and modified it to accept a pin according to
plans I got from someone in Australia, I think. The plotter appears
to work OK. I say this based on the self test. Also I hooked it up
to my old PC and it printed at least one sheet OK. But now I have a
newer PC that runs XP. It does have one serial port but I have not
been able to get it to respond. I have the owner's manuals for the
plotter. I also use a cheap windows-based CAD program called Key
Cad. I have been able to draw pcb layouts manually but would like to
output to the plotter.

Any suggestions.

Thanks,

Jim, W7PUP