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    Stepper motor Noob Here

    Duet Hardware and wiring
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    • BlueDust
      BlueDust last edited by

      Noob here.
      I just bought a DuetEth and all e3d steppers. On the website for each motor, it says 1.68A Phase. Does that mean the motor current should be set to 1680ma on the duet? I am just trying to test the motors at the default 1000ma, and the Duet keeps giving me an error about not homed. When I try to use GCode, I get an error (javascript, disconnected from duet to protect it self).
      I am not sure if the wrong mA set is related to the errors, but I just want to move the corexy a few mm to make sure they are working. Still working on a proper mounting method for my optical end stops...

      Thanks!

      Fun, that 3 letter word with "u" in the middle.

      deckingman 1 Reply Last reply Reply Quote 0
      • Emily
        Emily last edited by

        The maximum realistic current you want to run the motor at is going to be more like 70-80% of what the motor is rated for. You want to make sure in addition to this the motor is not getting too hot, and in general that your drivers are capable of this. Its pretty common to run stepper motors well below their rated current, so you could consider going lower if they are performing well.

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

          As @Emily says. 60 to 85% of rated motor current is common. If the motors are attached to the frame using printed PLA parts, you need to be careful that the motors don't get hot enough to soften the PLA.

          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
          • deckingman
            deckingman @BlueDust last edited by

            @bluedust said in Stepper motor Noob Here:

            Noob here.
            ..................... the Duet keeps giving me an error about not homed. ....................

            Thanks!

            Use M564 H0 https://duet3d.dozuki.com/Wiki/GCode#Section_M564_Limit_axes. This will allow axis movement before the axes have been homed. But use with care because until the axes have been homed, there is nothing to stop them trying to move beyond their physical limits.

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

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

              @deckingman
              Thanks
              Most G code I send to the printer gives me this error as did M564 S0 H0. I don't have a USB cable long enough to reach the printer right now to try and use a terminal emulator.
              Any ideas?
              0_1535308217725_75dedcd7-f993-4ab8-a8d1-d773be0fcace-image.png

              Thank you all for your help!

              Fun, that 3 letter word with "u" in the middle.

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

                Incase this helps with the above error... This is what my DuetEth is running on.
                0_1535308459060_b12a15f3-60a3-40ef-aaa1-2d5ff1b9fa96-image.png

                Fun, that 3 letter word with "u" in the middle.

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

                  @bluedust said in Stepper motor Noob Here:

                  M564 S0 H0

                  I figured it out... I don't know what specifically caused the Gcode problems I have been having but I ran through the Gcode auto config tool again, and now it works. Thanks for your help guys! I really appreciate it!

                  Fun, that 3 letter word with "u" in the middle.

                  wilriker 1 Reply Last reply Reply Quote 0
                  • wilriker
                    wilriker Moderator @BlueDust last edited by

                    @bluedust If JavaScript Error reappears go to
                    Settings -> List Items and delete every entry under Default G-Codes then hit Apply Settings and it should be working again.

                    There is a bug in DWC that has been fixed in the latest version but this version is currently only fully compatible with the latest Beta version of RepRapFirmware.

                    Manuel
                    Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                    with probably always latest firmware/DWC (incl. betas or self-compiled)
                    My Tool Collection

                    1 Reply Last reply Reply Quote 1
                    • chrishamm
                      chrishamm administrators last edited by

                      Please try to upgrade to Duet Web Control 1.22.2: https://github.com/chrishamm/DuetWebControl/releases This version fixes the issue you're experiencing. Alternatively, as wilriker said, try to click on "Apply Settings" to restore the correct data type.

                      Duet software engineer

                      BlueDust 1 Reply Last reply Reply Quote 1
                      • BlueDust
                        BlueDust @chrishamm last edited by

                        @chrishamm @wilriker

                        Thanks guys!

                        Fun, that 3 letter word with "u" in the middle.

                        1 Reply Last reply Reply Quote 0
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