Duet3D Logo Duet3D
    • Tags
    • Documentation
    • Order
    • Register
    • Login

    Stepper Motor Temperature Range...

    Scheduled Pinned Locked Moved
    Duet Hardware and wiring
    4
    6
    313
    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.
    • zBeebleundefined
      zBeeble
      last edited by

      I tried searching on this --- couldn't come up with a useful search --- since so many other unrelated topics discuss temperature of things other than the Stepper Motors here :).

      So... what is an acceptable range for the temperature of a Stepper motor? 3 of the 5 on my printer seem to be around 40C to 45C (ie: I can touch them, but they're hot), but I believe two of them are running around 60C (ie: I can briefly touch them, but it's beyond uncomfortable).

      deckingmanundefined 2 Replies Last reply Reply Quote 0
      • deckingmanundefined
        deckingman @zBeeble
        last edited by

        @zbeeble Check the data sheet for the motors you are using - that's the only way to answer your question. Usually it's quoted as around 80 Deg C.

        Ian
        https://somei3deas.wordpress.com/
        https://www.youtube.com/@deckingman

        1 Reply Last reply Reply Quote 0
        • zBeebleundefined
          zBeeble
          last edited by

          Fetched my fluke IR meter ... I was really bang-on with my temp estimate.

          I wonder, tho. 2 things...

          1. Can we cause the mA sent to the motors to be scaled with the required speed of movement? Z doesn't move all that much.
          2. Can we cause the bed levelling to "stop" or "scale back" after a number of layers? Certainly, I find the bed levelling useful for a really good part to bed adhesion, but by the 20th or 30th layer, it seems like it's just become a bunch of busy work.
          jay_s_ukundefined dc42undefined 2 Replies Last reply Reply Quote 0
          • jay_s_ukundefined
            jay_s_uk @zBeeble
            last edited by

            @zbeeble

            1. Turn the current down
            2. Bed taper compensation M376 https://docs.duet3d.com/User_manual/Reference/Gcodes#m376-set-bed-compensation-taper

            Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

            1 Reply Last reply Reply Quote 0
            • dc42undefined
              dc42 administrators @zBeeble
              last edited by

              @zbeeble said in Stepper Motor Temperature Range...:

              Can we cause the mA sent to the motors to be scaled with the required speed of movement? Z doesn't move all that much.

              All Duet 3 boards support standstill current reduction, which reduces motor current when the motor is not moving. Use the M917 command to configure it.

              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

              1 Reply Last reply Reply Quote 0
              • deckingmanundefined
                deckingman @zBeeble
                last edited by

                @zbeeble One other thing. If you can, use aluminium motor mounts bolted to the frame. You'll find (as I did) that the alumium conducts the heat away from motor - the mount and frame act as a giant heat sink. My 2.3A NEMA 23s and 1.8A NEMA 17s barely get much above ambient even after several hours of throwing 3Kgs of mass around at high speed.

                Ian
                https://somei3deas.wordpress.com/
                https://www.youtube.com/@deckingman

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