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RepRap Firmware M915 Error

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  • undefined
    bfpa40
    last edited by 15 Mar 2019, 23:07

    Im using RepRap Firmware v2.02RC5(RTOS) (2018-11-28b1)used on (Ender 3/Duet 2 Maestro)

    When issuing a home all In the GCode Console i get the following:

    5:56:53 PM Warning: M915 command is not supported
    5:56:40 PM G28
    Warning: M915 command is not supported

    While it looks like the printer sets itself up to the center of the hot bed, deploys the probe, retracts probe and raises a little, Im questioning the M915 Error. In the homeall.g file the 2 instances of the M915 command that fail are:

    M915 X S2 Y S3 R0 F0 ; set X and Y sensitivity, do nothing when stall, unfiltered

    M915 X S10 Y S10 R3 F0 ; set X and Y sensitivity to -0, when stall home XY and resume print, filtered so it takes 4 steps to figure out it has stalled

    Is the M915 command no longer Valid and if not what replaced it if anything? I have attaached a copy of the homeall.g file0_1552691091746_homeall.g.odt

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    • undefined
      dc42 administrators
      last edited by 16 Mar 2019, 11:02

      The TMC2224 drivers on the Duet maestro do not support stall detection. See https://duet3d.dozuki.com/Wiki/The_Duet_family_of_motion_control_electronics.

      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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      • undefined
        bfpa40
        last edited by 16 Mar 2019, 14:02

        I took all of the scripts from elsewhere online and am trying to use it for my Ender 3. So basically I can remove those 2 lines since they are NOT doing anything. Is there an alternative way of doing the same thing? Something supported by the TMC224 Motors? Or better yet is there even a need for this?

        undefined undefined 2 Replies Last reply 16 Mar 2019, 14:08 Reply Quote 0
        • undefined
          dc42 administrators @bfpa40
          last edited by 16 Mar 2019, 14:08

          You can just remove those M915 lines.

          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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          • undefined
            bfpa40
            last edited by 16 Mar 2019, 15:15

            Shall do thanks

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            • undefined
              NOVAprint @bfpa40
              last edited by 27 Mar 2019, 00:13

              @bfpa40 i know there is because I want it. I know there is a need because I want it. I also removes wires and failure points presented by endstops.

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