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    Implementing a 4 axis config

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    • fmaundefined
      fma
      last edited by

      Hi!

      As said on reprap forum, I plan to add 2 axis on the bed: A (X // rotation axis), and C (Z // rotation axis), in order to be able to print on a sphere.

      Such kinematic is non-linear, as Delta or Scara are, so I guess I have to activate the segmentation feature, which, if I understand, split one long segment in several small ones; Am I right?

      Where does this segmentation usage defined? In other workds, how is the right constructor called, and from where?

      Thanks,

      Frédéric

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      • dc42undefined
        dc42 administrators
        last edited by

        Currently you have to create additional axes in the order U V W A B C. So your axes will be U and V.

        You can add additional linear axes to existing supported kinematics without changing the firmware, but to add nonlinear axes you will need to define your own Kinematics class in the firmware, deriving it from either the base Kinematics class or another of the existing classes. One of the options you specify is whether you want segmentation applied or not.

        HTH David

        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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        • fmaundefined
          fma
          last edited by

          Forgot to say that my printer is a CoreXY. So, it uses 5 motors…

          Frédéric

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          • fmaundefined
            fma
            last edited by

            I started to implement this kinematic, and I have some questions.

            But Is it the good place? I didn't find a sub-forum dedicated to devs…

            Frédéric

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            • T3P3Tonyundefined
              T3P3Tony administrators
              last edited by

              Good point about the sub-forum, David would you prefer a "Dev" forum or for developers to use github to discuss work on features?

              www.duet3d.com

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              • dc42undefined
                dc42 administrators
                last edited by

                @T3P3Tony:

                Good point about the sub-forum, David would you prefer a "Dev" forum or for developers to use github to discuss work on features?

                Let's have a Firmware Developers sub-forum. I'll create one. Edit: I just did that.

                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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                • fmaundefined
                  fma
                  last edited by

                  Good! Is it possible to move this thread in this new sub-forum?

                  Frédéric

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                  • dc42undefined
                    dc42 administrators
                    last edited by

                    I don't know how to do that, but I think Tony does.

                    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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