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Maintenance for 3D printer
3D printer is high-precision equipment,
the precision will be influenced if you
disassemble the nozzle, so you need
adjust and position of the Z end-stop
and the spring of the hotbed again.
Calibration
Items to be adjusted
1. whether the hot bed is flat
2. height between the nozzle and
hotbed
Details:
1. Whether the hot bed is flat
There are 4 screws, see the picture