Geeetech A10T User Manual page 17

b. Too low: the distance between the nozzle and the bed is too close, which prevents the filament
from coming out and causes the extruder gear to click, and even worse, scratch the nozzle on the
bed. See picture (6-4).
c. Moderate: Extrude the filament properly and evenly stick on the bed. See picture (6-5).
In the case of too low and too high, adjust the knobs under the platform till they are moderate. It
may take some trial and error to achieve the best result. An example of good first layer, see
picture (6-6).
Note:

If turn the knobs clockwise, the platform will rise, and vice versa.

Avoid the nozzle touching the bed; use a piece of A4 paper. Or it will scratch the bed.
For more details, please refer to this link:
http://geeetech.com/forum/viewtopic.php?f=112&t=62296
Shenzhen Getech Technology Co.,Ltd
(Picture 6-3)
(Picture6-4)
(Picture 6-5)
(Picture 6-6)
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