Make Your Own PCBs on a CNC Mill | The Hobby-Machinist
Milling your first PCB | Details | Hackaday.io
How to use EagleCAD to generate G-code - YouTube
The Line Grinder Help: Isolation Milling Step-By-Step
GitHub - McNugget6750/pcb-gcode: Modified version of PCB-gCode. An Eagle PCB Layout Tool PlugIn that can create beautiful tool paths directly in eagle.