FlashForge Adventurer 4 3D Printer (FFF) - Manual (Page 15)

Normal Mode ： extruder calibration and 9-point leveling offset are included.
Click on [Normal Mode] to start pre-calibration. The first point is to calibrate the initial
distance between the extruder and the platform. Click on the up and down arrows to
adjust the Z-axis deviation value. You can also sense if there is slight resistance by
pulling A4 paper between them to decide the appropriate distance. In general, no further
adjustment is needed. If large size model still cannot be printed after extruder calibra-
tion, or failure occurs due to uneven platform, please finish 9-point leveling by calibrat-
ing all 9 points. After calibration, the software will automatically calculate a mean value
for compensation; when calibrating each point, the user can also adjust the z-axis
deviation by clicking the up and down arrows; after compensation, the value can be
calculated and applied.
2.4.3 Calibration
It is necessary to calibrate the distance between the nozzle and the platform after the first
use or replacement of the nozzle;
Expert mode
： Expert mode is for experienced users to directly calibrate the distance.
Click to make extruder move upwards，Click to make extruder move down-
wards.
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