M290 R0 S0 ; Reset baby stepping M561 ; Disable any Mesh Bed Compensation G30 P0 X152.5 Y5 Z-99999 ; probe near back leadscrew G30 P1 X295 Y295 Z-99999 ; probe near front left leadscrew G30 P2 X5 Y295 Z-99999 S3 ; probe near front right leadscrew and calibrate 3 motors G29 S1 ; Enable Mesh Bed Compensation