Duet3D Logo

    Duet3D

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

    Tips & tricks for mounting a flying extruder

    Tuning and tweaking
    4
    7
    665
    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.
    • bartolomeus
      bartolomeus last edited by

      As of yesterday I have converted to a flying extruder setup on my Delta. It's working very well, although the mean error after delta calibration has increased from 0.025 tot 0.065. I will lower travel speed and increase the recovery time to see if that gets it back to lower values.

      I used 4mm diameter elastic band and the extruder is hangly fairly low, with very little tension on the elastic band. I only applied some tension to align the extruder output to the hotend. I can tighten the bands, but then the bowden will be a bit longer. I have seen that some use silicone tubing instead of elastic.

      Are there any tips & tricks on mouting a flying extruder setup?

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

        I have NOT done the actual extruder... hope to do so soon... I HAVE "flown" my bowden and wiring several ways since building a large-ish delta.

        The way that worked best is to use "Stretch Magic" from the carriages. SM is intended for beading and similar:

        https://www.amazon.com/gp/product/B0058E7WOA/

        Amazing stuff. VERY resistant to breaking from overstretch. VERY light.

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

          Thanks. I'll have a look at it. Yesterday I lowered probing travel speed and increased recovery time, and delta calibration results have improved to 0.03/0.04.

          BPisLife 1 Reply Last reply Reply Quote 0
          • BPisLife
            BPisLife @bartolomeus last edited by

            @bartolomeus I know I have seen a “keyback” used to put tension upwards on the extruder. In fact I think it was Haydn (the guy who sells awesome mag ball arms) that posted about that.

            Danal 2 Replies Last reply Reply Quote 0
            • Danal
              Danal @BPisLife last edited by

              This post is deleted!
              1 Reply Last reply Reply Quote 0
              • Danal
                Danal @BPisLife last edited by

                @bpislife said in Tips & tricks for mounting a flying extruder:

                @bartolomeus I know I have seen a “keyback” used to put tension upwards on the extruder. In fact I think it was Haydn (the guy who sells awesome mag ball arms) that posted about that.

                Fantastic idea.

                A common problem with elastic is they give more pull when stretched. The linear pull of a "belt retractor" or "keyback" might work much better.

                Must try this, and soon!

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

                  I use one to support the Bowden tube and cables, to prevent their weight applying a sideways force to the effector.

                  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
                  • First post
                    Last post
                  Unless otherwise noted, all forum content is licensed under CC-BY-SA