Use G29 to print current mesh
X1 X2 X3
Y1: 2.92500 3.80000 4.10000 Y2: 3.05000 3.70000 4.05000 Y3: 3.02500 3.62500 3.90000
G29 S1
will initiate the bed leveling, homing and traveling to the first point to probe.
Then use your preferred Printer controller program, i.e. Printrun, to lower the hotend until it touches the bed. Using a paper to feel the distance when it gets close.
G29 S2
will store the point and travel to the next point until last point has been probed.
G29 S3 Xn Yn Zn.nn
will modify a single probed point.
G29 S3 X1 Y1 Z2.92500 G29 S3 X2 Y1 Z3.80000 G29 S3 X3 Y1 Z4.10000 G29 S3 X1 Y2 Z3.05000 G29 S3 X2 Y2 Z3.70000 G29 S3 X3 Y2 Z4.05000 G29 S3 X1 Y3 Z3.02500 G29 S3 X2 Y3 Z3.62500 G29 S3 X3 Y3 Z3.90000
To reset EEPROM:
M502: Reset current settings to defaults, as set in Configurations.h M500: Make it persistent