Very strange behavior (Mr. David pse help)



  • There are any permanent logs (still present after power off) for to try to understand what's happened to the machine?
    This morning I found a nasty surprise.
    The machine was printing a long job, about 14 hours of printing.
    It was almost at the end of the job, but something must have happened.
    I found the nozzle stuck in the piece, and the duet wifi that was booting continuously.
    All the leds went on and off continuosly, I have turned off and on the power but the problem was still present, only after the third try all goes normal again.
    It's not a power problem supply because it is a professional type and has 30 Amp. and isn't a power line outage because the power line is managed by a UPS.
    The print was long but no more than other prints made only a few hours before.
    What could have be happened?
    The job was launched directky from the SDCard because I have noticed that, after that I am using this firmware version, there are some strange problems with the web interface and so, try to avoiding problems, I prefer to start the print jobs from the touch panel.
    Now I tried to launch a small test print and everything seems to work properly, nothing strange.
    All suggestions and comments are really appreciated.

    Firmware Version: 1.19beta6 (2017-06-10)
    WiFi Server Version: 1.19-beta1
    Web Interface Version: 1.16

    Dommy


  • administrators

    If all the LEDs went off including the blue one, then the power to the Duet kept failing. Possibly causes include:

    • Bad power in connection. Check that the VIN terminal block screws are tight.
    • Something drawing more that 30A shortly after power up. But I would expect you to see signs of charring if anything on the Duet was doing this.
    • A fault in the PSU causing its overload protection to trigger falsely.


  • @dc42:

    If all the LEDs went off including the blue one, then the power to the Duet kept failing. Possibly causes include:

    • Bad power in connection. Check that the VIN terminal block screws are tight.
    • Something drawing more that 30A shortly after power up. But I would expect you to see signs of charring if anything on the Duet was doing this.
    • A fault in the PSU causing its overload protection to trigger falsely.

    Hello Mr. David,
    Your suggestions are all right, in fact these are the first things I thought and controlled, unfortunately I find nothing unusual and then, as I wrote before, I launched a test print and everything worked well.
    So I guess there's no log, right? If I enable debugging in the firmware what happens?
    Do you completely exclude a possible bug under certain conditions?
    Are you aware of the slight anomalies with the web interface?

    Thank you anyway for support
    Dommy


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