Geeetech A20M User Manual page 30

Choose "Move 1mm", see picture (5-24).
Note: we suggest using 1mm to test X/Y/Z axis.
After axis' testing finished, if you want to unlock the motor, choose "Prepare>Disable steppers",
see picture (5-25).
When the motors are unlocked, you can move them by hand.
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(Picture 5-23)
(Picture 5-24)
(Picture 5-25)
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