ending gcode

G91 ;relative positioning
G1 E-3 F300 ;retract the filament to release some of the pressure
M104 S0 ;extruder heater off
M140 S0 ;heated bed heater off
G1 Z10 ; move Z up a bit
M106 S255 ;fan at 100% to cool nozzle
G90 ;absolute positioning
G1 X100 Y200 ;move bed back and halfway over
M84 ;steppers off