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Duet 3 Mainboard 6HC - initial production run.

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  • ?
    A Former User @TLAS
    last edited by A Former User 9 Oct 2019, 14:16 10 Sept 2019, 14:04

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

    Kind of curious why the Duet stayed with the 40 pin connector instead of matching the 26?

    I think you'll find its the other way around, the connector was reduced from 40 to 26 presumably to save board space.
    (iircc the old duet 2 expansion is 50 pin(?), the new only needs 5 signals + ground and potentially 5v if so configured. however earlier raspberry boards aslo use a 26 pin connector, could be related)

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      Dougal1957
      last edited by 10 Sept 2019, 14:07

      yep the Duet has the 26 and the pi is 40

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        JoergS5
        last edited by 10 Sept 2019, 16:45

        Aug 10th were some comments in this thread about to use other cables if necessary.

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          gtj0
          last edited by 12 Sept 2019, 13:30

          @T3P3Tony Can we still use the link in the first post to order even though there might not be any available from the first run?

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            T3P3Tony administrators @gtj0
            last edited by 12 Sept 2019, 13:55

            @gtj0 now just yet. I want to be able to say when the next batc will be available first

            www.duet3d.com

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              Dougal1957
              last edited by 13 Sept 2019, 17:48

              Tony is there any chance any more from this first batch will become available I know at least one guy who is desperate to jump on the band waggon. I seem to remember you saying you had kept some back to allow for failures during testing

              Doug

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                PastThePoint
                last edited by 13 Sept 2019, 17:49

                I suppose there is no way to be notified when some stock is available? I have cash in hand for a D3 Mainboard, but missed the pre-order. I don't want to miss the chance to purchase on because I didn't check the website at the right time. So Doug told me to post a comment here as well.

                Looking forward to this!

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                  T3P3Tony administrators @Dougal1957
                  last edited by 13 Sept 2019, 17:49

                  @Dougal1957 I expect we will do, will announce more next week.

                  www.duet3d.com

                  undefined 1 Reply Last reply 13 Sept 2019, 17:50 Reply Quote 0
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                    Dougal1957 @T3P3Tony
                    last edited by 13 Sept 2019, 17:50

                    @T3P3Tony said in Duet 3 Mainboard 6HC - initial production run.:

                    @Dougal1957 I expect we will do, will announce more next week.

                    Thanks I will point him to this.

                    undefined 1 Reply Last reply 13 Sept 2019, 19:03 Reply Quote 0
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                      gtj0 @Dougal1957
                      last edited by 13 Sept 2019, 19:03

                      @Dougal1957 said in Duet 3 Mainboard 6HC - initial production run.:

                      @T3P3Tony said in Duet 3 Mainboard 6HC - initial production run.:

                      @Dougal1957 I expect we will do, will announce more next week.

                      Thanks I will point him to this.

                      Tell him to get to the back of the line. 🙂

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                        gtj0
                        last edited by 17 Sept 2019, 21:51

                        It's a little hard to tell from the renderings and pics but can someone confirm that the 26 pin connector polarity notch faces in towards the MPU?

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                          A Former User @gtj0
                          last edited by 17 Sept 2019, 21:53

                          @gtj0 said in Duet 3 Mainboard 6HC - initial production run.:

                          It's a little hard to tell from the renderings and pics but can someone confirm that the 26 pin connector polarity notch faces in towards the MPU?

                          Did you see the new Wiki? https://duet3d.dozuki.com/Wiki/SBC_Setup_for_Duet_3

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                            gtj0 @A Former User
                            last edited by 17 Sept 2019, 21:55

                            @bearer Yeah but you can't tell in those pics because the cable exits the IDC pins to the left (inwards) but then loops back through the strain relief towards the right and out. I can't see the notch.

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                              A Former User
                              last edited by 17 Sept 2019, 22:02

                              @gtj0 I suppose its not given the notch is on the left hand side in those pictures although the red stripe indicating pin 1 would suggest that, which side the cable exits shouldn't affect pin 1 and the notch.

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                                gtj0 @A Former User
                                last edited by 17 Sept 2019, 22:14

                                I've learned through bitter experience not to take for granted the relationship between the notch and pin 1. About 10 years ago I had a local company make me 100 10-pin cables and they didn't bother to follow my spec. Apparently 3 different people made the cables so I got 3 different orientations.

                                Anyway, I'm experimenting with different cable lengths and right now I'm getting great results with a 300mm cable at a 1MHz clock rate but only if I alternate the signal lines with grounds. In fact it still looks great at 5HMz. I was toying with using some twisted pair as well but twisted pairs aren't all that effective in unbalanced circuits.

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                                  T3P3Tony administrators @gtj0
                                  last edited by 17 Sept 2019, 22:22

                                  @gtj0 the 26 way header notch goes in, towards the center of the Duet 3 mainboard. The Duet 3 has a keyed header.

                                  www.duet3d.com

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                                    gtj0 @T3P3Tony
                                    last edited by gtj0 17 Sept 2019, 22:25

                                    Perfect. Thanks @T3P3Tony And what are you doing up so late?

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                                      Danal
                                      last edited by Danal 18 Sept 2019, 01:56

                                      Mine is here! Yay!

                                      From reading this thread, and the new wiki, it is a little unclear to me if the included SD card is should already have an image on it. The one I received formatted, but empty. Installing the image now...

                                      Edit update: Image installed, booted, connected via both Web and SSH, everything works just fine. Now, to pick a printer to receive this beauty... 🙂

                                      Danal

                                      Delta / Kossel printer fanatic

                                      undefined 1 Reply Last reply 18 Sept 2019, 08:31 Reply Quote 1
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                                        Dougal1957
                                        last edited by 18 Sept 2019, 06:31

                                        Mine certainly had an image on else I would have been lost as I know very little about the way Linux interacts (I know a lot more now since I got this thing on Saturday)

                                        Doug

                                        ? 1 Reply Last reply 18 Sept 2019, 06:36 Reply Quote 1
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                                          A Former User @Dougal1957
                                          last edited by 18 Sept 2019, 06:36

                                          @Dougal1957 said in Duet 3 Mainboard 6HC - initial production run.:

                                          Mine certainly had an image on else I would have been lost as I know very little about the way Linux interacts (I know a lot more now since I got this thing on Saturday)

                                          Doug

                                          Did the Duet 3 just get classified as a "gateway drug"? 😮

                                          undefined 1 Reply Last reply 18 Sept 2019, 20:43 Reply Quote 2
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