Help fixing "Timer too close" shutdown

General Discussion
12

Seeing an incrementing bytes_retransmit when using USB is unusual. (Typically, with USB any line errors are retransmitted at the hardware level and the Klippher host software is not aware of it.)

For what it is worth, your symptoms seem more like voltage instability or overheating. You might want to quickly check some of the items described at: Timeout with MCU / Lost communication with MCU

Some other suggestions:

  • Try updating to the latest code and reflash the micro-controller with the latest code.
  • See if you can add a [temperature_generic host] config section with a temperature_host sensor ( Configuration reference - Klipper documentation ).
  • Add a [temperature_generic my_mcu] config section with a temperature_mcu sensor ( Configuration reference - Klipper documentation ).
  • Monitor the above temperatures during prints to see if there is a correlation between errors and temperatures.

-Kevin

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