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    Duet 3 Expansion Board 3HC Motors Not Working Properly

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    Duet Hardware and wiring
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    • Phaedruxundefined
      Phaedrux Moderator @Jered
      last edited by

      @jered said in Duet 3 Expansion Board 3HC Motors Not Working Properly:

      So that's why it seems so strange that, at least for now, it seems to be working with just adding a delay.

      The delay allows the configuration to be applied to the expansions. So before they would have been using default values if they didn't startup in time. So when you sent commands after the fact to change motor currents, they started working again, because they got some actual values.

      @jered said in Duet 3 Expansion Board 3HC Motors Not Working Properly:

      About the update, where do I type that command into? The command bar?

      Those update commands need to be sent to the Pi command terminal, either over SSH or through the Pi desktop if you use that.

      Z-Bot CoreXY Build | Thingiverse Profile

      Jeredundefined 1 Reply Last reply Reply Quote 0
      • Jeredundefined
        Jered @Phaedrux
        last edited by

        @phaedrux Can I update using a terminal window on the Pi? I have a keyboard, monitor and mouse.

        If so, do I enter those commands one at a time or can I cut and paste them both and hit enter?

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        • Jeredundefined
          Jered
          last edited by

          I just answered my own question, and yes is the answer.

          Thanks for your help!
          Hopefully no more issues!

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          • Phaedruxundefined
            Phaedrux Moderator
            last edited by

            After the update you should use M122 and M122 B# again to check that the firmware was successfully applied to all the boards.

            Z-Bot CoreXY Build | Thingiverse Profile

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            • Jeredundefined
              Jered @Phaedrux
              last edited by

              @phaedrux I did do that and it all looks good!

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              • Phaedruxundefined
                Phaedrux Moderator
                last edited by

                Glad it was an easy fix.

                Z-Bot CoreXY Build | Thingiverse Profile

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                • Phaedruxundefined Phaedrux marked this topic as a question
                • Phaedruxundefined Phaedrux has marked this topic as solved
                • Jeredundefined
                  Jered
                  last edited by

                  Hey guys, so I had this problem happen again. The motor was not turning after I changed the config (accel setting) and rebooted.

                  So I changed the time on the G4 command to 8 instead of 5. So:
                  G4 S8

                  It seems to be working now. But I am now not convinced that this is a permanent fix.

                  Any thoughts?

                  Attached is my config. config.g

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                  • Jeredundefined
                    Jered
                    last edited by

                    So, this problem just occurred again. It happens when I make a change to the config. After saving the config, it asks if I want to read the config again or restart the controller. Well, if I tell it to just read the config again, the motors connected to the expansion board will not work at a feed rate of 5000 mm/m or higher.

                    So, to get the motors to work again I told the controller to restart after the config edit and the motors did work. It appears that just reading the config is not good enough. I am wondering, due to the amount of boards I have connect to the main board may be a problem.

                    Let me know what you think. My config is attached in the previous reply.

                    Also, I am adjusting the M201 and M566 setting to try and get better quality, however, these setting seem to have no effect on the machine.

                    I made huge adjustment to them just to see what happens and I don't see anything. I will probably end up starting a new discussion for this.

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                    • Jeredundefined
                      Jered
                      last edited by

                      I have moved this to a new topic.

                      Norderundefined 1 Reply Last reply Reply Quote 0
                      • Norderundefined
                        Norder @Jered
                        last edited by

                        Link to new thread...
                        https://forum.duet3d.com/topic/30135/duet-3-expansion-board-3hc-motors-not-working-properly-again

                        DDA5X... 0.9° Stepper... Linearrails... Duet 2 Wifi... PT100 Board... Duet IR-Probe... Dyze Pro Kit up to 500°C.. etc
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