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

    Two different motors used by E0

    Scheduled Pinned Locked Moved
    Duet Hardware and wiring
    4
    8
    349
    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.
    • DuetUserundefined
      DuetUser
      last edited by

      Hi,

      I'm going to add a secondary filament drive motor for at filament spool to offload main extruder. Extruder motor is 25mm 1.0A 200 steps one and the helper motor is 42mm 1.6A 400 steps one to provide the same gear ratio.

      Is there a possibility to connect one motor to E0 driver, the second motor to E1 driver and drive both at the same time while extruding?

      It's easy to do for Z axis with M584 X0 Y1 Z2:3 E4 or something, but M584 X0 Y1 Z2 E3:4 assigns different drivers to E0 and E1.

      I'm currently on RRF 1.21 and Duet 2 Ethernet.

      Connecting two motors to one driver ine series leaves the small one underpowered (it has 2x larger resistance)

      peter

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

        @duetuser
        Two extruders are to be used here for conveying filament.
        Maybe it will help you ?

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

        DuetUserundefined 1 Reply Last reply Reply Quote 2
        • DuetUserundefined
          DuetUser @Norder
          last edited by

          @norder Great! Thanks!

          peter

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

            @duetuser you can configure them as separate extruders but then adjust your M563 tool definition to use both of then as if you have a mixing extruder, and then set the M567 mix ratio to 1:1.

            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

            DuetUserundefined 1 Reply Last reply Reply Quote 0
            • DuetUserundefined
              DuetUser @dc42
              last edited by

              @dc42 Thanks a lot! works like a charm!

              peter

              DuetUserundefined 1 Reply Last reply Reply Quote 0
              • DuetUserundefined
                DuetUser @DuetUser
                last edited by

                When 2 motors are connected this way is it possible to drive only one of them (to load filament)
                One way would be to create a dummy tool :

                M563 P1 D1

                and driving it :

                T1
                G1 E1500 F1000

                but it is too much of a hack.

                I know there is M302 P0 to allow cold extrusion, but is there a
                way to force a certain piece of silicon on the board to feed pulses to connected motor?

                peter

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

                  @duetuser said in Two different motors used by E0:

                  When 2 motors are connected this way is it possible to drive only one of them (to load filament)
                  One way would be to create a dummy tool :

                  M563 P1 D1

                  and driving it :

                  T1
                  G1 E1500 F1000

                  but it is too much of a hack.

                  I know there is M302 P0 to allow cold extrusion, but is there a
                  way to force a certain piece of silicon on the board to feed pulses to connected motor?

                  Assuming you have a tool defined thus....
                  M563 D0:1
                  .......to use two extruders. Then you can use the form G1 E1500:0 F1000 which will extrude 1500 mm of filament using extruder drive 0. Or you can use G1 E0:1500 which will use extruder drive 1. When the colon separator is used thus, the mixing ratio to ignored.

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

                  DuetUserundefined 1 Reply Last reply Reply Quote 1
                  • DuetUserundefined
                    DuetUser @deckingman
                    last edited by

                    @deckingman
                    Ofcourse! Thanks a lot it's so elegant!

                    peter

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