(homing routing) M104 S220 T0 (Temperature to 220 celsius) M109 S110 T0 (Heated Platform Temperature to 110 Celsius) M107 (fan off) G21 (Metric FTW) M108 S255 (Extruder speed = max) M6 T0 (Wait for tool to heat up) G04 P5000 (Wait 5 seconds) G0 Z0 (Go back to zero.) (end of start.)