Okay, it's easy to export PCB G-Code from Eagle with plugin named ''pcb-gcode" - he doing that really well. You must try this. Now im trying to find some informations about Z Probes, and auto bed leveling, which is very important in PCB insulation. I'm trying to do that with https://github.com/martin2250/GrblHeightProbe2 but i dont know how to connect that probing system to drill and copper plate. Maybe you have some good tips about auto bed leveling?