Seeed pcb users...

[culturejam]

I've never used gerbers to order from OshPark, so I don't know if their CAM file is compatible.

You should generate a new set of gerbers for Seeed, using their CAM file. It's probably fine as is, but it's best to use the fab's CAM when making gerbers.

[pryde]

I've never used gerbers to order from OshPark, so I don't know if their CAM file is compatible.

You should generate a new set of gerbers for Seeed, using their CAM file. It's probably fine as is, but it's best to use the fab's CAM when making gerbers.

Thanks, obviously I don't know WTH I am doing  . I used Diptrace so will wait to hear from Ben/rollywow on best way forward.
Looked at elecrow and I like the multi-color options for no up-charge but I will see who Ben likes as a DT user.

[alanp]

OSHPark's DRU file seems to be a bit pickier, so I use that for my checking, but I use Seeed's CAM file to generate gerbers.

As for their gerber viewer -- sometimes it works, sometimes it does not.