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
