Geeetech A30 User Manual page 22

If you cannot feel a little bit friction at all, it means the distance between the nozzle and
build platform is too far and the adhesion of filament to the platform will be not guaranteed.
You need to click the downward icon
distance between the nozzle and the build platform.
If you can feel obvious friction, it means the distance between the nozzle and build
platform is too close. The filament can't be extruded out or can even be jammed. You need to
click the upward icon
the nozzle and the build platform.
Step3. Fine leveling. Move the extruder to the other 4 points and adjust the corresponding
screws until you get the same amount of friction as you felt with the fifth one. Take leveling
point 1 for instance.
If you cannot feel a little bit friction at all, it means the distance between the nozzle and
build platform is too far and the adhesion of filament to the platform will be not guaranteed.
You need to anticlockwise rotate the nut on the platform which is corresponding to leveling
point 1 and raise the build platform up to reduce the distance between the nozzle and the
build platform.
If you can feel obvious friction, it means the distance between the nozzle and build
platform is too close. The filament can't be extruded out or can even be jammed. You need to
clockwise rotate the nut on the platform which is corresponding to leveling point 1 and the
drop build platform off to increase the distance between the nozzle and the build platform.
Once you have adjusted each of the four screws, go back and check each one again,
since adjusting one screw can affect another. There is no need to go around the build platform
more than twice.
After leveling, the filament should be fully extruded with smooth lines and closely stick
to the platform, as shown in the picture below.
to move the Z axis down in order to reduce the
to raise the Z axis in order to increase the distance between
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