How to fix a problem when printing on a 3d printer?

Question

Arduino

During the printing of any part, the printer stops and issues a log with errors.

Changing monitoring state from 'Paused' to 'Printing'
Send: N6930G1 E5.000000 F6000*42
Send: N6931G1 E-5.000000 F6000*6
Send: N6932G1 X61.270000 Y74.260000 F9000*93
Send: N6933G1 E5.000000 F6000*41
Recv: ok
Send: M105 T0
Serial timeout while writing to serial port, trying again.
Serial timeout while writing to serial port, trying again.
Send: N6933G1 E5.000000 F6000*41
Recv: ok
Send: N6934G1 F9000*95
Serial timeout while writing to serial port, trying again.
Unexpected error while writing serial port: SerialTimeoutException: 'Write timeout' @ machineCom.py:_sendCommand:506
Changing monitoring state from 'Printing' to 'Error: SerialTimeoutExcepti...'
Unexpected error while writing serial port: AttributeError: ''NoneType' object has no attribute 'write'' @ machineCom.py:_sendCommand:506
Connection closed, closing down monitor

The speed is on COM 115200, I changed the usb cable, I tried it on two PCs.

Answer 1

judging by the error, the device is not responding, check that the correct com port is selected

Answer 2

Have you tried the same model on all printers?
The case may be in the wrong gcode
The firmware would be updated.