Then enter: g1 x180 y10 ,The nozzle will go to D coordinate
Repeat two to three times to ensure that the results are more
accurate.
Now the heated bed is leveling ,preparation before leveling is
complete.
G29 is autolevel command,after you load model and slice it ,the
regular succession is g28 go home,g29 autolevel ,then you can
click start print