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    Extra axies not interpolatedduring G2 and G3 moves

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    • Kulitorumundefined
      Kulitorum
      last edited by

      I am still waiting for a new firmware 🙂

      I just updated to RC4a to check if the fixes were implemented, and noticed that there are a few other problems:

      G2 and G3 moves are moving too slow. The command

      G1 x0 y0
      g2 x1000 y000 i500 j000 f16000

      Takes 43 seconds to execute, and should take 31.4 second.

      At the same time, the axies are very noisy. I think the axies are accelerating and decelerating all the time, leading to slow move speed and noisy steppers. If I increase acceleration to 50000 (from 400) the time matches the 31.4 sec and the axies are not noisy.

      Any idea when you are releasing the next RC?

      Kulitorum

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

        @kulitorum said in Extra axies not interpolatedduring G2 and G3 moves:

        I am still waiting for a new firmware 🙂

        I just updated to RC4a to check if the fixes were implemented, and noticed that there are a few other problems:

        G2 and G3 moves are moving too slow. The command

        G1 x0 y0
        g2 x1000 y000 i500 j000 f16000

        Takes 43 seconds to execute, and should take 31.4 second.

        At the same time, the axies are very noisy. I think the axies are accelerating and decelerating all the time, leading to slow move speed and noisy steppers. If I increase acceleration to 50000 (from 400) the time matches the 31.4 sec and the axies are not noisy.

        Any idea when you are releasing the next RC?

        Kulitorum

        Can you confirm that G2 and G3 moves are extruding correctly in RC4a?

        If it's printing circles too slowly then you probably need to increase the XY jerk setting.

        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

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        • Kulitorumundefined
          Kulitorum
          last edited by

          Extrusion works, but U interpolation does not work.

          Changing XY jerk makes no difference, but changing acceleration does.

          Kulitorum

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

            @kulitorum said in Extra axies not interpolatedduring G2 and G3 moves:

            Extrusion works, but U interpolation does not work.

            Changing XY jerk makes no difference, but changing acceleration does.

            Kulitorum

            Can you give me a small example of the sort of G2 or G3 move with U movement that you are making? I was planning to do a release later this afternoon but I'll try to fix this issue first when I am sure I understand what it is.

            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

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            • Kulitorumundefined
              Kulitorum
              last edited by

              I assume you are doing some kind of piecewise linear move, and if you use the start AND end position of each piece, you will get double coords (end is the same as start) and this leads to constant acceleration and deacceleration. Maybe you just need to use the end points and this will fix it?

              Kulitorum

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              • Kulitorumundefined
                Kulitorum
                last edited by

                G1 x0 y0
                g2 x000 y1000 i00 j500 u9000 e9 f6000

                dc42undefined 1 Reply Last reply Reply Quote 0
                • Kulitorumundefined
                  Kulitorum
                  last edited by

                  After a demo of x and y axis, I execute the G2 command I pasted here:
                  https://youtu.be/g3Q2_Sx2frY

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                  • dc42undefined
                    dc42 administrators @Kulitorum
                    last edited by dc42

                    @kulitorum said in Extra axies not interpolatedduring G2 and G3 moves:

                    G1 x0 y0
                    g2 x000 y1000 i00 j500 u9000 e9 f6000

                    What was the U coordinate before you executed that command?

                    EDIT: ignore that, I found the problem.

                    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

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                    • Kulitorumundefined
                      Kulitorum
                      last edited by

                      Any progress?

                      Kulitorum

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                      • whosrdaddyundefined
                        whosrdaddy
                        last edited by

                        I believe @dc42 fixed this problem in 2.0RC5...

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                        • Kulitorumundefined
                          Kulitorum
                          last edited by

                          Just tested RC5, the missing axis problem has been fixed.

                          Thanks

                          Michael

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                          • dc42undefined
                            dc42 administrators
                            last edited by

                            Thanks for confirmation.

                            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

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