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    M25 resume-after-power- fail-state saved?

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    • KnutKundefined
      KnutK
      last edited by KnutK

      My D-BOT with Duet Wifi have got a strange behavior, it release a ![M25 resume-after-power- fail-state saved https://1drv.ms/f/s!AmiXGFnLNvHbsyhH8CDJG-PHfQa4, and start printing in a wrong place, moving diagonally against Y0/Xmax.
      I need some input on this, I've tried everything to get this right, but the error is still there. I have tried a new PSU, but it didn't help any. I've used my printer for several months, and have not change the settings and this occur this week. Next I'll try, is to check all motor plug in, but now I search in the dark, any suggestions?

      I forgot this:

      Firmware Name:
      RepRapFirmware for Duet 2 WiFi/Ethernet
      Firmware Electronics:
      Duet WiFi 1.02 or later + DueX5
      Firmware Version:
      2.0(RTOS) (2018-06-05b3)
      WiFi Server Version:
      1.19
      Web Interface Version:
      1.19

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      • dc42undefined
        dc42 administrators
        last edited by

        The firmware saves the resume state whenever you pause the print. To reduce confusion, in firmware 2.02RC5 the message has been changed from "Resume-after-power- fail-state saved" to "Resume state saved".

        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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        • KnutKundefined
          KnutK
          last edited by

          Sorry for a late respons.
          No, I struggling with the same problem, upgrade to the latest firmware and web control. This time I got a longer alarm list, looks like it's a driver problem? I use 0.9 steppers on XY axis, is those a problem? I've tried different prints, also lasting over 4 hours with a good result. so I'm really confused. The whole thing is on 24v. Unless the heated bed, it's on 220v, via SSR relay.
          This is what the Duet tells me![alt text](0_1543920926837_duet wifi.JPG image url)

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          • dc42undefined
            dc42 administrators
            last edited by

            The firmware is claiming that the X motor (assuming that you haven't used M584 to remap the X driver to) is disconnected or set to a very low current. Send M906 and M913 without parameters, to see what motor currents are set.

            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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            • KnutKundefined
              KnutK
              last edited by

              Hi! Thank you for a quick respond to my problem.
              I had used M584 to remap the X driver, but now I have it back on the original position. And the warning report list looks way better. At the same time I looked over all the electrical on the main board, to eliminate any problem with the hardware. I don't use the M911 code yet, is this something I should have done?

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              • dc42undefined
                dc42 administrators
                last edited by

                The M991 command is needed only if you want to activate the resume-after-power-fail feature. https://duet3d.dozuki.com/Wiki/Setting_up_to_resume_a_print_after_a_power_failure

                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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                • KnutKundefined
                  KnutK
                  last edited by

                  Hi!
                  I did find where the problem was, I changed the Y and X motors from 1.8 steppers to 0.9 steppers a while ago. It looks like the holding torque of the 0.9 steppers was too low. When I stepped back, and mounted the 1.8 steppers, the printer worked as it always have.

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                  • dc42undefined
                    dc42 administrators @KnutK
                    last edited by

                    @knutk said in M25 resume-after-power- fail-state saved?:

                    Hi!
                    I did find where the problem was, I changed the Y and X motors from 1.8 steppers to 0.9 steppers a while ago. It looks like the holding torque of the 0.9 steppers was too low. When I stepped back, and mounted the 1.8 steppers, the printer worked as it always have.

                    I'm glad you solved it. Typically, 0.9deg motors have a little less holding torque than 1.8deg motors from the same manufacturer with the same size and rated current. Example:

                    • 17HS19-2004S1 (1.8deg) 59Ncm
                    • 17HM19-2004S (0.9deg) 46Ncm

                    It gets more complicated if you change the motor length or rated current at the same time.

                    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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