Files for a 3018 CNC machine. Alignment, and pcb2gcode settings

spoilboard_setup: FreeCAD project, and gcode for 5mm alignment pins
PCB_alignment: FreeCAD project, and gcode for aligning 150mmx100mm blank PCBs at 50mm above y-axis in work coordinates.
pcb2gcode_config: settings exported from pcb2gcodeGUI with working speeds and feeds for a small 3018 CNC, and y-axis mirror for 2-sided milling. Drill and cut outline from 'back' side.