Before automatic leveling, the heated bed and the X axis aluminum should be
leveling
We can through①② two points, adjust the aluminum , through the A B C D four
points, adjust the hot bed
First enter the G28 command, so that the machine is in the
middle position.
Second in the command bar enter: g1 z10 (The purpose of
doing so is to prevent the scratches when the nozzle goes down
to the next coordinate)
Then enter: g1 x180 y90 ,The nozzle will go to ① coordinate