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    Duet3D 1HCL - Closed Loop Controller Beta test

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    • tristanryerparkeundefined
      tristanryerparke @dc42
      last edited by tristanryerparke

      @dc42 I’d like to order some as well when they become available. Please let us know if we can pre-order.
      Also, could you describe in more detail the issues with closed loop corexy that you mentioned?
      I would be willing to help beta test the corexy functionality if that would help.
      Thanks and look forward to the boards,
      Tristan

      1 Reply Last reply Reply Quote 0
      • A Former User?
        A Former User @dc42
        last edited by

        @dc42
        Ok I understand.
        For me it's no option to change the style of the x axis (double shaft nema17) I must work with an external encoder.
        I'm happy to hear that duet will sell this board in the next months.
        Would like to have a few of this little fun maker.
        Please give us a sign when we can order some.
        Thanks a lot
        Richard

        dc42undefined 1 Reply Last reply Reply Quote 0
        • dc42undefined
          dc42 administrators @A Former User
          last edited by

          The first small production run of the EXP1HCL is currently undergoing testing by our assemblers. We should know more on Monday.

          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

          A Former User? 2 Replies Last reply Reply Quote 1
          • A Former User?
            A Former User @dc42
            last edited by

            @dc42
            Sounds great!!!
            Thanks for updating us

            Cheers
            Richard

            1 Reply Last reply Reply Quote 0
            • samlogan87undefined
              samlogan87
              last edited by

              I am keen to get two as well. I have the 48v power supply just need the boards now

              Custom Core-XY

              A Former User? 1 Reply Last reply Reply Quote 0
              • A Former User?
                A Former User @samlogan87
                last edited by

                @samlogan87
                what is the benefit of 48 volt?

                cheers
                richard

                samlogan87undefined 1 Reply Last reply Reply Quote 0
                • samlogan87undefined
                  samlogan87 @A Former User
                  last edited by

                  @gruna-studio you are able to run it much faster

                  Custom Core-XY

                  A Former User? 1 Reply Last reply Reply Quote 0
                  • A Former User?
                    A Former User @samlogan87
                    last edited by A Former User

                    @samlogan87
                    really? the motors can drive faster?

                    since two years I´m working with 3d printers and duet and I never heard about it. haha

                    Is there a good summary from Duet?

                    Today is "1HCL-Monday". !!!!

                    cheers richard

                    dc42undefined 1 Reply Last reply Reply Quote 0
                    • dc42undefined
                      dc42 administrators @A Former User
                      last edited by

                      @gruna-studio driving stepper motors at the desired current depends on having enough driver supply voltage to overcome the back EMF of the motors, which increases with speed. It's especially important with high inductance and high current motors. You can estimate the voltage needed using the calculator at https://www.reprapfirmware.org/emf.html.

                      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

                      A Former User? 3 Replies Last reply Reply Quote 0
                      • A Former User?
                        A Former User @dc42
                        last edited by

                        @dc42
                        ok thanks a lot!

                        1 Reply Last reply Reply Quote 0
                        • A Former User?
                          A Former User @dc42
                          last edited by

                          @dc42
                          any good news?

                          😄

                          1 Reply Last reply Reply Quote 0
                          • samlogan87undefined
                            samlogan87
                            last edited by

                            @gruna-studio i know. I am hanging out for them. I have money burning a hole in my pocket

                            Custom Core-XY

                            1 Reply Last reply Reply Quote 0
                            • A Former User?
                              A Former User @dc42
                              last edited by

                              @dc42
                              Hey any good news?
                              Cheers
                              Richard

                              T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
                              • T3P3Tonyundefined
                                T3P3Tony administrators @A Former User
                                last edited by

                                @gruna-studio yes! finally over the bottle neck. drop me a line tony@duet3d.com as you have been waiting a while so we may be able to supply directly from next week (before we can get any to our resellers). also @samlogan87

                                Note support for these is still experimental in RRF 3.4

                                www.duet3d.com

                                A Former User? 1 Reply Last reply Reply Quote 0
                                • A Former User?
                                  A Former User @T3P3Tony
                                  last edited by

                                  @t3p3tony

                                  yeeeeah!
                                  thanks a lot.

                                  So there is the first question.
                                  Is there any experience with specific encoders I could use?

                                  f300a153-a5d4-49da-a5a1-31cdbaf9707d-image.png

                                  Is this an actual information?

                                  If there is no picture yet, I can provide you some good ones and other documentations.

                                  Thanks a lot
                                  Richard

                                  T3P3Tonyundefined dc42undefined 2 Replies Last reply Reply Quote 0
                                  • samlogan87undefined
                                    samlogan87
                                    last edited by

                                    @T3P3Tony awesome. Sent you an email regarding getting some boards

                                    Custom Core-XY

                                    1 Reply Last reply Reply Quote 0
                                    • T3P3Tonyundefined
                                      T3P3Tony administrators @A Former User
                                      last edited by

                                      @gruna-studio the SPI connected encoders are not yet fully supported. we have done some limited testing but for now I recommend using quadrature encoders.

                                      www.duet3d.com

                                      1 Reply Last reply Reply Quote 0
                                      • dc42undefined
                                        dc42 administrators @A Former User
                                        last edited by dc42

                                        @gruna-studio the encoders we have had most success with are the 1000 PPR (4000 CPR) ones built-into some 1.8deg stepper motors. There are some examples at https://www.omc-stepperonline.com/closed-loop-stepper-motor/.

                                        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

                                        A Former User? 1 Reply Last reply Reply Quote 0
                                        • A Former User?
                                          A Former User @dc42
                                          last edited by

                                          @dc42

                                          OK... nice to know. Can´t wait to install it. 🙂

                                          My X-axis works with an double shaft nema 17 who has belts on both ends. So I can´t ( at the moment) install the a new motor. How about the encoder of stepper online. I guess they´re quiet similar to the build in encoder.. or am I completly wrong?
                                          May it´s a cheaper solution to upgrade specific axis.

                                          https://www.omc-stepperonline.com/encoder/

                                          This encoder would fit nicely in my system but I`m not sure if this is working in the same way as the built in encoder of stepper online nemas.

                                          cheers Richard

                                          https://www.omc-stepperonline.com/download/HKT30-32.pdf
                                          56870398-1ff5-41dc-ae6c-101f6e3ee781-image.png

                                          alankilianundefined 1 Reply Last reply Reply Quote 0
                                          • alankilianundefined
                                            alankilian @A Former User
                                            last edited by alankilian

                                            @gruna-studio Can you find some place that verifies you can get a 4,000 counts-per-revolution encoder? I looked at their web page and data sheet and I don't get a solid feeling that's true, but it might be true.

                                            I see CPR and LinesPerRev/PulsesPerRev (LPR/PPR) used incorrectly all the time.

                                            If you can only get a 1000 CPR encoder that's going to be too low a resolution to get you good performance. If the data sheet says CPR but they really mean LPR than it's OK, but without buying and testing one you won't know.

                                            SeemeCNC Rostock Max V3 converted to V3.2 with a Duet2 Ethernet Firmware 3.2 and SE300

                                            A Former User? dc42undefined 2 Replies Last reply Reply Quote 0
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