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    Using Stall detection as emergency shutdown?

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    Firmware wishlist
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    • kuhnikuehnastundefined
      kuhnikuehnast
      last edited by

      Hi!
      This weekend, an unfortunate mistake happend to me:
      For any reason the BL-Touch clamp broke while homeing... Unfortunately this happend exact at the moment I had no eye on the printer... As I came back, the nozzle had scratched over the whole printbed and was stuck at a bed clamp.

      So my question:
      Is there a chance to use stall detection as emergency shutdown? So if the board detects stall detection (e.g. after a print didn't stick at the printbed and the nozzle crashed into it etc.) the stepper motors should be turned off as well as the heatbed and nozzle?

      Greetings kuhni

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      • dc42undefined
        dc42 administrators
        last edited by

        I presume it is just the Z motor that you would want this to apply to?

        I can add it to the firmware wish list. The change would be to add option R4 to the M915 command, meaning do an emergency stop.

        Duet WiFi hardware designer and firmware engineer
        Please do not ask me for Duet support via PM or email, use the forum
        http://www.escher3d.com, https://miscsolutions.wordpress.com

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        • kuhnikuehnastundefined
          kuhnikuehnast
          last edited by

          The circumstance as it happend was the following: Due to the broken Bltouch the bed leveled to high. So x and y moved and the nozzle scratched over the bed. So I think it would also be great for x and Y.
          Other problem could be: a print that doesn't stick to the bed and causes a crash of the nozzle.

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