Navigation

    Duet3D Logo

    Duet3D

    • Register
    • Login
    • Search
    • Categories
    • Tags
    • Documentation
    • Order

    Manually find endstop corrections on a delta?

    Tuning and tweaking
    4
    8
    523
    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.
    • blt3dp
      blt3dp last edited by blt3dp

      Just curious how this might be done. My thought was to do something like this.

      1. Use a rod and place it against the linear rail and move the carriage down until it touches the rod.
      2. Do the same thing for all 3 towers.
      3. Set the position, G92 X0 Y0 Z0
      4. ?

      It's that last part I don't know how to get the machine to measure how much movement it takes to return to the endstops.

      My 3D Printing YouTube Channel
      Better Living Through 3D Printing

      Follow me on Instagram and Twitter
      Instagram
      Twitter

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

        Simple answer: Don't. Auto-calibrate works REALLY well.

        Delta / Kossel printer fanatic

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

          If you built your delta accurately, it should be possible to get the endstops within 1mm height of each other. Then use auto calibration to find the corrections (you can even do this without a Z probe). If that shows that the endstop corrections are larger than you would like, you can adjust the endstop heights and repeat.

          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

          Naqaj blt3dp 2 Replies Last reply Reply Quote 0
          • Naqaj
            Naqaj @dc42 last edited by

            @dc42 Can the 3-factor manual Auto Delta Calibration be changed to a 6 factor calibration? If so, where would I find that setting?

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

              @naqaj said in Manually find endstop corrections on a delta?:

              @dc42 Can the 3-factor manual Auto Delta Calibration be changed to a 6 factor calibration? If so, where would I find that setting?

              Yes, manual and automatic calibration are exactly the same. The S parameter on the final G30 command in bed.g is the number of calibration factors. Using P0 in the M558 command (meaning no Z probe) is what tells the firmware that you are determining the height errors manually.

              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
              • blt3dp
                blt3dp @dc42 last edited by

                @dc42 said in Manually find endstop corrections on a delta?:

                If you built your delta accurately, it should be possible to get the endstops within 1mm height of each other. Then use auto calibration to find the corrections (you can even do this without a Z probe). If that shows that the endstop corrections are larger than you would like, you can adjust the endstop heights and repeat.

                how would I do this? I though the auto calibration required a z probe.

                My 3D Printing YouTube Channel
                Better Living Through 3D Printing

                Follow me on Instagram and Twitter
                Instagram
                Twitter

                dc42 Danal 2 Replies Last reply Reply Quote 0
                • dc42
                  dc42 administrators @blt3dp last edited by

                  @blt3dp, read the wiki page on delta calibration. It includes calibrating without a Z probe.

                  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
                  • Danal
                    Danal @blt3dp last edited by Danal

                    @blt3dp said in Manually find endstop corrections on a delta?:

                    how would I do this? I though the auto calibration required a z probe.

                    Do read the wiki, but short conceptual answer: If no Z probe is configured, running G29 will cause the web interface to pop open a window that guides you through manually probing each point via clicking z up or down and dragging a piece of paper.

                    In fact, it is really easier to "just do it" than to read the wiki...

                    Delta / Kossel printer fanatic

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