Hi…I now have my cam files according to the instructions and the seeed cam job file but i´m wondering if I need to set the mirror option in bottom layer gerber file (.GBL) on the seed cam job file eagle options …this question is cause I print both the gerber top layer (.GTL) and botton (.GBL) and they don’t match…it is necessary to do this?..thanks in advance…
No, you should not make any changes on the options in the cam-file, it’s normal for most boardhouses that they want the bottom layers mirrored.
If you just want to have a better look yourself at the files when using Gerbv there’s an option in Gerbv to mirror a layer.