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    Orbiter 2 extruder mounting for Smart effector with Magball arms

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    Smart effector for delta printers
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    • dc42undefined
      dc42 administrators @Snimax
      last edited by

      @snimax thanks, that's very useful. Did you leave the spacing between adjacent ball studs in the corners the same, or did you increase that too?

      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

      Snimaxundefined Adrian52undefined 2 Replies Last reply Reply Quote 0
      • Adrian52undefined
        Adrian52 @Snimax
        last edited by

        @snimax tried to take a picture of my version from the same viewpoint
        alt text

        I have maintained the 55mm spacing, and find a good fit with the motor orientated as shown. The effector is in its furthest 'Y' position, where the arms are closest to the motor.

        1 Reply Last reply Reply Quote 0
        • Snimaxundefined
          Snimax @dc42
          last edited by

          @dc42 I tried to keep the spacing between the balls at the corners. I think there was a formula somewhere of the stability of the effector where you wanted to keep that spacing short but I cant recall where I saw it 😕

          @Adrian52 Looks good! I like the idea of having a straight and much shorter filament path, compared to my adapter where the filament is in a slight s-shape 🙂 Haven't gotten around to compare it yet though

          1 Reply Last reply Reply Quote 0
          • Adrian52undefined
            Adrian52 @dc42
            last edited by

            @dc42 I have now done an adapter that maintains the 12mm spacing of the magballs

            alt text

            The carriage adapters look like this

            alt text

            I played with the offset, settling on moving the centre line of the studs 7.5mm from the base of the triangle. This gives very close (within 0.02mm) spacing of 81mm for the arms, requiring a 13mm spacer on each side of the carriage. As you can see, this gives plenty of room for the orbiter 2 mounted with a straight vertical filament path.

            I have printed these in nylon using 80% infill, which seems to give a slightly better result than PLA .

            Not much experience printing with this setup yet, but the initial impression is of increased precision over the 55mm arm separation.

            dc42undefined vapvapundefined 2 Replies Last reply Reply Quote 1
            • dc42undefined
              dc42 administrators @Adrian52
              last edited by dc42

              @adrian52 thanks. Wider arm spacing is generally preferred, because it provides greater rigidity and less sensitivity to small geometric errors.

              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

              Adrian52undefined 1 Reply Last reply Reply Quote 0
              • Adrian52undefined
                Adrian52 @dc42
                last edited by

                @dc42 I should have done my homework. According to the reprap wiki here , stability decreases linearly with ball gap, but increases with the square of arm gap. So compared to the standard geometry, keeping the arm gap decreases stability almost threefold, whilst the 12mm ball gap with wider arms more than doubles stability. I think I was so impressed with the improvement of direct drive over the bowden that I didn't consider the effect of geometry on stability.

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                • vapvapundefined
                  vapvap @Adrian52
                  last edited by

                  @adrian52 As always, great idea!
                  And as usual - we are waiting for the addition to "thingiverse".

                  Adrian52undefined 1 Reply Last reply Reply Quote 0
                  • Adrian52undefined
                    Adrian52 @vapvap
                    last edited by

                    @vapvap Thanks. Posted it now

                    https://www.thingiverse.com/thing:5463328

                    vapvapundefined 1 Reply Last reply Reply Quote 1
                    • vapvapundefined
                      vapvap @Adrian52
                      last edited by

                      @adrian52 Thank you so much for sharing your ideas with us.
                      Do you do any additional fine-tuning in the firmware?

                      1 Reply Last reply Reply Quote 0
                      • vapvapundefined
                        vapvap
                        last edited by

                        Can anyone explain how to set this up?
                        With "Delta Calibration (G32)", the nozzle began to scratch on the center of the table ...

                        weed2allundefined 1 Reply Last reply Reply Quote 0
                        • weed2allundefined
                          weed2all @vapvap
                          last edited by weed2all

                          @vapvap have you run thru
                          https://docs.duet3d.com/en/User_manual/Tuning/Delta_calibration

                          https://www.thingiverse.com/weed2all/designs

                          1 Reply Last reply Reply Quote 0
                          • weed2allundefined
                            weed2all @Fred-Y
                            last edited by weed2all

                            my LGX lite direct drive mount for smart effector for my 3 kossel printers
                            photo_2022-10-18_15-02-58.jpg photo_2022-10-18_15-02-55.jpg
                            photo_2022-10-18_15-02-52.jpg photo_2022-10-18_15-02-49.jpg photo_2022-10-18_15-02-45.jpg photo_2022-10-18_15-02-39.jpg photo_2022-10-18_15-02-30.jpg

                            https://www.thingiverse.com/weed2all/designs

                            PCRundefined 1 Reply Last reply Reply Quote 2
                            • Falkiaundefined
                              Falkia @Fred-Y
                              last edited by

                              @Fred-Y I have been thinking of that solution for my Orbiter 2.0. With my 80mm rod spacing adapter the Orbiter can be mounted horizontally.

                              Orbiter_a.PNG
                              Orbiter_b.PNG
                              Orbiter_c.PNG

                              Printer: "Deltacus" Delta with 510mm bed diameter and 925mm build height. Powered by Duet 2 WiFi. Duet Smart Effector with E3D Volcano.

                              Falkiaundefined 1 Reply Last reply Reply Quote 1
                              • Falkiaundefined
                                Falkia @Falkia
                                last edited by Falkia

                                Made some mounts for the Orbiter 2.0. Works great with my 80mm smart effector adapter. Weight is 12 grams.

                                received_640196257769560.jpeg

                                Printer: "Deltacus" Delta with 510mm bed diameter and 925mm build height. Powered by Duet 2 WiFi. Duet Smart Effector with E3D Volcano.

                                1 Reply Last reply Reply Quote 3
                                • PCRundefined
                                  PCR @weed2all
                                  last edited by

                                  @weed2all possible to get the stl ?

                                  weed2allundefined 1 Reply Last reply Reply Quote 0
                                  • weed2allundefined
                                    weed2all @PCR
                                    last edited by weed2all

                                    @PCR yes...of course...I uploaded them to my thingiverse, just click on the signature and you go directly to my thingiverse page!

                                    https://www.thingiverse.com/weed2all/designs

                                    1 Reply Last reply Reply Quote 1
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