TierTime UP mini 3 User Manual page 43

3, Place the calibration card at point 1 on the build table.
4, Move the extruder closer to the build plate. E.g. the
right image shows the current nozzle height is "205.63"
(blue box). Enter "204.64" in the red box, and click the
"Move" button. The nozzle will move to 204.64.
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