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

    Attempt to move the head of a Delta or SCARA printer before homing the

    Scheduled Pinned Locked Moved
    Tuning and tweaking
    2
    7
    1.5k
    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.
    • Cinproundefined
      Cinpro
      last edited by

      10:30:47 PM
      Attempt to move the head of a Delta or SCARA printer before homing the towers
      10:30:43 PM
      G28
      Attempt to move the head of a Delta or SCARA printer before homing the towers

      new firmware and DWC installed and calibrations done, However this keep coming up every time I home the printer, even if it was just homed. I don't remember this coming up before, am I mistaken?

      1 Reply Last reply Reply Quote 0
      • dc42undefined
        dc42 administrators
        last edited by

        This usually means that homing is failing, by not triggering one or more of the homing switches. Does each carriage stop cleanly when it pushes the switch?

        Please share your homedelta.g file.

        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
        • Cinproundefined
          Cinpro
          last edited by

          they are optical endstops, they home, move back a little then do a slow home and offset 5mm. homes like it always has.

          ; homedelta.g
          ; called to home all towers on a delta printer
          ;
          ; generated by RepRapFirmware Configuration Tool on Mon May 22 2017 22:56:20 GMT-0400 (Eastern Daylight Time)

          ; Use relative positioning
          G91

          ; Move all towers to the high end stopping at the endstops (first pass)
          G1 X505 Y505 Z505 F3000 S1

          ; Go down a few mm
          G1 X-5 Y-5 Z-5 F1800 S2

          ; Move all towers up once more (second pass)
          G1 X10 Y10 Z10 F360 S1

          ; Move down a few mm so that the nozzle can be centred
          G1 Z-5 F6000

          ; Switch back to absolute positioning and go to the centre
          G90
          G1 X0 Y0 F6000

          M280 P3 S10 I1

          1 Reply Last reply Reply Quote 0
          • dc42undefined
            dc42 administrators
            last edited by

            Are you certain that all 3 endstops are triggering? Use the Machine Properties page of DWC to check that the endstops are working properly.

            Are you sure that you haven't created any additional axes using M584?

            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
            • Cinproundefined
              Cinpro
              last edited by

              I spoke too soon, its back:

              1:33:33 PM
              Attempt to move the head of a Delta or SCARA printer before homing the towers
              1:33:29 PM
              G32
              Attempt to move the head of a Delta or SCARA printer before homing the towers
              Error: Homing failed
              Error: Insufficient axes homed for bed probing
              Error: Insufficient axes homed for bed probing
              Error: Insufficient axes homed for bed probing
              Error: Insufficient axes homed for bed probing
              Error: Insufficient axes homed for bed probing
              Error: Insufficient axes homed for bed probing
              Error: Insufficient axes homed for bed probing
              Error: Insufficient axes homed for bed probing
              Error: Insufficient axes homed for bed probing
              Error: Insufficient axes homed for bed probing
              Error: Insufficient axes homed for bed probing
              Error: Insufficient axes homed for bed probing
              Error: Insufficient axes homed for bed probing

              it does this the first time, when I tell it to home a second time it appears to work as normal

              1 Reply Last reply Reply Quote 0
              • dc42undefined
                dc42 administrators
                last edited by

                Is 505mm (the value in your first G1 S1 xcommand) enough to ensure that no matter where the effector starts from, no carriage will have to move up more than 505mm before it triggers the homing switch? On my 1m high delta it isn't and I use 700mm instead.

                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
                • Cinproundefined
                  Cinpro
                  last edited by

                  520-525 should be enough then as it was 515 before I took the PEI sheet off. I kept looking at my config height that was set. If I keep making enough mistakes I'll be an expert one day 😄

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