Because of the material of the hot end and the position of the thermistor.

PID usually needs to be adjusted

Please try to modify the PID value as follows: Test

>DEFAULT_ Kp 210.75 # –default

>DEFAULT_ Ki 35.125 # –default

>DEFAULT_ Kd 316.126 # –default

Mainboard uses Marin firmware, 24V power supply

220 ℃ as the target

Temperature fluctuation+- 1 ℃ during actual 3D printing

The cooling fan at the hot end needs to be turned on when printing

The cooling fan of the model during the test is 3010 * 2pcs