Navigation

    Duet3D Logo

    Duet3D

    • Register
    • Login
    • Search
    • Categories
    • Tags
    • Documentation
    • Order

    Second thermistor as a failsafe?

    General Discussion
    2
    3
    339
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • kraegar
      kraegar last edited by

      My keenovo has a thermistor built into it, but I also have one on the top of my aluminum plate. I prefer to use the one on top since it's more accurate for the print at the printing surface. I'm wondering if I can use the one in the keenovo as a fail-safe, where if it gets more than X degrees higher than the other, it shuts off the bed. Is something like this possible? Or can I at least set the second thermistor up to display without having to associate it with a hotend, etc?

      1 Reply Last reply Reply Quote 0
      • dc42
        dc42 administrators last edited by

        It's possible to use a second thermistor to set an upper temperature limit, using some features that have been added to M143 but not yet documented. I've asked the person who did the work on M143 to document the new features in the GCode wiki.

        It's also possible to display the reading of a thermistor not associated with a heater by creating a named virtual heater for it using M305.

        1 Reply Last reply Reply Quote 0
        • kraegar
          kraegar last edited by

          Thanks David!

          Using it as an upper limit in this case would be the ideal situation.

          1 Reply Last reply Reply Quote 0
          • First post
            Last post
          Unless otherwise noted, all forum content is licensed under CC-BY-SA