> What is the correct thing to look for, then? The mask layers I got > have, in gerbv, grey where there should be soldermask and black where > there should be no soldermask.
I'm guessing pcbexpress wants black where mask and grey where exposed. > I assumed from what pcbexpress told me that they were complaining > about the use of ``IPNEG'' in the gerber file for the solder mask > layers, but I'm not sure. True, they might want an IPPOS layer that still has grey where mask and black where exposed. > I'm not sure if that would get me the optimal pad size, though. Also, > doing that manually for 9 connectors times three holes per connector > would leave me feeling like I'd like better automation. The .pcb file is a text file; you can use a perl/sed/awk/edit script to bulk change them.
