M304 bug?



  • Whenever I try to set the bed PID parameters I get an error response which sounds like it thinks I am sending an M305 command instead of M304:

    M304 P100 I50 D150
    Error: M304: Invalid bed heater index '100



  • What happens if you specify a heater target with H?

    Never mind, I was thinking of M301.


  • administrators

    @TickTock:

    Whenever I try to set the bed PID parameters I get an error response which sounds like it thinks I am sending an M305 command instead of M304:

    M304 P100 I50 D150
    Error: M304: Invalid bed heater index '100

    There was a bug fix to M304 in release 1.21. Are you running older firmware?

    However, we recommend that you normally use M303 to find the heater model, or M307 to enter the model parameters manually. Either way, two sets of PID parameters will be generated from the model. Even if you use M304 to define the PID constants, you still need to provide a heater model for the temperature fault detection to work properly.



  • Looks like I am on 1.20.


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