Hello, I have finished laying out and routing my motor controller PCB (thanks = for all those that helped) and am now proceeding to generate the = required Gerber and drill files. However, I have quickly ran into a = problem. EAGLE CAD has a predefined job for doing RS274x. This job = indicates that the solder side should be mirrored. However, when I do = this and then preview the resulting Gerber files in GC-Prevue the solder = side is incorrect (i.e. it shouldn't have been mirrored). =20 My problem is that I am uncertain if I am using EAGLE CAD incorrectly = (and should not be mirroring the solder side) or am using GC-Prevue = incorrectly (and somehow need to specify that this signal layer is on = the bottom of the PCB). It seems it should all just be a matter of convention, but being new to = this I am not sure what is most common. Thanks for any help. Regards, Donovan PS: How do you load a tool list file in GC-Prevue? I know how to add = the drill file, but can find no way to automatically load the tool list. = I am currently manually entering the tool list. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads