M999 ; clear errors M400 ; clear buffer G21 ; set units to millimeters M82 ; use absolute distances for extrusion G92 X0 Y0 Z0 E0 ; Set cords to zero M92 E800 ; set esteps to base 800 M500 ; save into memory M106 S255 ; fan on G4 S3 ; wait 3 sec M107 ; fan off M109 S230 ; set extruder nozzle to 230C and wait G4 S15 ; wait 15 sec to mark extrude and mark filament G1 E100 F90 ; move extruder 1 200mm M107 ; turn off fans G4 S1 ; wait M400 ; flush buffer M104 S0 ; turn off temp M84 ; idle motors M18 ; turn off motors