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    Duet 3 Mainboard 6HC - initial production run.

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    • fotomasundefined
      fotomas
      last edited by

      The "Hardware overview" of the Duet 3 says "Ethernet for future expansion", I am guessing that this is a typo and the board has an ethernet connection not using WiFi?

      deckingmanundefined 1 Reply Last reply Reply Quote 0
      • deckingmanundefined
        deckingman @fotomas
        last edited by deckingman

        @fotomas The RPi has an RJ45 Ethernet which is what will be used for the web server etc. So my guess (and it is just a guess) would be that it's not typo but is indeed an additional Ethernet connector.

        Ian
        https://somei3deas.wordpress.com/
        https://www.youtube.com/@deckingman

        A Former User? dc42undefined 2 Replies Last reply Reply Quote 0
        • A Former User?
          A Former User @deckingman
          last edited by A Former User

          @deckingman
          You are correct the pi 3B+ also has wifi

          @fotomas

          I think you would benefit from reading and analyze and digest the documentation in greater detail, as guessing is the mother of all F******s

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

            The ethernet port has been covered earlier in this very thread..

            https://forum.duet3d.com/post/104297
            https://forum.duet3d.com/post/104241

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

              @deckingman said in Duet 3 Mainboard 6HC - initial production run.:

              @fotomas The RPi has an RJ45 Ethernet which is what will be used for the web server etc. So my guess (and it is just a guess) would be that it's not typo but is indeed an additional Ethernet connector.

              The Ethernet connector is there for 2 reasons:

              1. For possible support of EtherCat in future.

              2. We have a small number of OEMs who use Duet 2 in print farms, where one PC uploads GCode files to multiple Duets. They will need to replicate this with Duet 3. So there will be the possibility of running the Duet 3 in standalone mode with a local SD card and no RPi. Then the Ethernet port will be used to upload files, send commands and get status, just like the Duet 2. But we haven't yet decided whether to fit the SD card socket as standard to the initial production run.

              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

              gtj0undefined fotomasundefined 2 Replies Last reply Reply Quote 0
              • gtj0undefined
                gtj0 @dc42
                last edited by

                @dc42 If you decide to not populate them, will the Duet3's be field upgradable if we decide we'd like that functionality? I.E. Is it just a matter of adding the magnetics/jack and the sd card holder?

                1 Reply Last reply Reply Quote 0
                • T3P3Tonyundefined
                  T3P3Tony administrators @deckingman
                  last edited by

                  @deckingman yes 4A but RMS now. David has tested over 4A RMS but I will keep the claim to 4 for now until we have done more testing

                  www.duet3d.com

                  DocTruckerundefined 1 Reply Last reply Reply Quote 0
                  • T3P3Tonyundefined
                    T3P3Tony administrators @Danal
                    last edited by

                    @danal @Dougal1957

                    We still have some of the first batch unallocated. When we have sold out of that production run it will be out of stock on the website.

                    The "normal" production run later this year will not be a pre-order.

                    Cheers

                    Tony

                    www.duet3d.com

                    1 Reply Last reply Reply Quote 0
                    • DocTruckerundefined
                      DocTrucker @T3P3Tony
                      last edited by

                      @t3p3tony said in Duet 3 Mainboard 6HC - initial production run.:

                      ...yes 4A but RMS now.

                      Does the gcode current limit now instruct the drivers to maintain an RMS value or use the value as a limit to chop the current at?

                      Running 3 P3Steel with Duet 2. Duet 3 on the shelf looking for a suitable machine. One first generation Duet in a Logo/Turtle style robot!

                      1 Reply Last reply Reply Quote 0
                      • DocTruckerundefined
                        DocTrucker
                        last edited by DocTrucker

                        Judging by the post on ecoansion board testing 4A RMS is roughly 5.7A peak, but I guess the exact relationship between RMS and peak will be related to drive voltage and the electrical properties of the motor.

                        If the Duet 3 does still control at peak current does it report RMS or was that just read off the test rig equipment?

                        Running 3 P3Steel with Duet 2. Duet 3 on the shelf looking for a suitable machine. One first generation Duet in a Logo/Turtle style robot!

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

                          M950 motor currents in RRF have always been peak. This is because when the original Duet 0.6 came out, instructions for setting potentiometers on stepsticks were given in terms of peak current, probably because the Allegro drivers that were generally used referred to peak currents in the datasheet.

                          Trinamic mostly refers to RMS currents in their datasheet. Somewhat confusingly, Marlin has adopted RMS current in its current-setting commands for Trinamic drivers, even though builds of Marlin for boards with non-Trinamic drivers that support motor current setting (e.g. RAMBO) have almost certainly always used peak current.

                          The maximum allowed M906 value in the latest RRF3 builds for Duet 3 is 6300.

                          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 1
                          • fotomasundefined
                            fotomas @dc42
                            last edited by

                            @dc42

                            I am probably slow here but I have read the hardware overview and it is not clear if a Raspnerry Pi I needed to use the web interface?

                            Has the duet 3 network.connectivity on it's own, wired or wireless?

                            The hardware overview states the following, and what is referred as "It" marked in bold? The duet 3 or a Raspbeery Pi.

                            The Duet 3 mainboard has a dedicated high speed SPI bus to a single board computer (SBC). The reference implementation is a Raspberry Pi 3B or newer. The SBC provides the user interface (via a browser based control application called Duet Web Control, or a third party application). It also provides a network interface via the local network or VPN depending on how it is configured.

                            T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
                            • T3P3Tonyundefined
                              T3P3Tony administrators @fotomas
                              last edited by

                              @fotomas The Ethernet network interface is mainly there for future support for EtherCat. and also for people who it does not make sense to use a SBC (like the OEMs that David mentioned that have multiple Duets controlled directly from a single computer). It would be possible to use the Duet 3 without a SBC, and just use the Network interface (assuming the uSD card holder is populated), but we are not recommending it because you loose out on all the development we are planning for the SBC (e.g better UI performance, better networking and plugins).

                              www.duet3d.com

                              fotomasundefined 1 Reply Last reply Reply Quote 1
                              • fotomasundefined
                                fotomas @T3P3Tony
                                last edited by

                                @t3p3tony thank you.

                                1 Reply Last reply Reply Quote 0
                                • martinkundefined
                                  martink
                                  last edited by

                                  Is it possible to power the MCU from EXT 5V (to allow it to shut off motors and heaters by turning off the 24V PSU), or has that been replaced by the SBC->5V setup?

                                  wilrikerundefined 1 Reply Last reply Reply Quote 0
                                  • wilrikerundefined
                                    wilriker @martink
                                    last edited by

                                    @martink said in Duet 3 Mainboard 6HC - initial production run.:

                                    Is it possible to power the MCU from EXT 5V (to allow it to shut off motors and heaters by turning off the 24V PSU), or has that been replaced by the SBC->5V setup?

                                    That's still possible.

                                    Manuel
                                    Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                                    with probably always latest firmware/DWC (incl. betas or self-compiled)
                                    My Tool Collection

                                    martinkundefined 1 Reply Last reply Reply Quote 0
                                    • martinkundefined
                                      martink @wilriker
                                      last edited by

                                      @wilriker Great, thanks for confirming!

                                      1 Reply Last reply Reply Quote 0
                                      • Knaudlerundefined
                                        Knaudler
                                        last edited by

                                        screws for Power ?
                                        something like this would be nice:
                                        https://www.wago.com/de/leiterplattenanschluss/klemmenleiste-fuer-leiterplatten/p/2716-102

                                        DocTruckerundefined dc42undefined 2 Replies Last reply Reply Quote 1
                                        • DocTruckerundefined
                                          DocTrucker @Knaudler
                                          last edited by

                                          @knaudler Potential cost issues apart these are better. No loosening issues as the springs keep the correct loading on the contacts.

                                          Running 3 P3Steel with Duet 2. Duet 3 on the shelf looking for a suitable machine. One first generation Duet in a Logo/Turtle style robot!

                                          1 Reply Last reply Reply Quote 0
                                          • LeonMFundefined
                                            LeonMF
                                            last edited by

                                            I've already bought my board (looking forward to it!). I totally didn't even read the specs before buying so I'm now catching up on the whole SBC thing. 🙂

                                            So, with the new SBC interface, does that mean that the PanelDue is deprecated? Is/will there be another touchscreen replacement to fill the gap?

                                            Also, is there any reason to avoid or go for a Pi 4 over the 3+?

                                            Current: Railcore II ZLT w/Duet 3 and Hemera hot end.
                                            Retired: Robo3D R1,BI V2.5 Delta updated to BerryBot magnets, bespoke carriages and Duet Ethernet, M3D Promega;

                                            Phaedruxundefined wilrikerundefined T3P3Tonyundefined JoergS5undefined 4 Replies Last reply Reply Quote 0
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