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How to extrude until trigger

Scheduled Pinned Locked Moved
Tuning and tweaking
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  • undefined
    zblairq
    last edited by 7 Jan 2019, 03:55

    oh another guy inspired by my desgin

    https://a360.co/2ROlq2O
    there u go boy. inspire yourself a bit more.

    latest version.

    the levers needs to be easy to access. facing front will be the best yours are unserviceable.

    check the new compound lever design and use a simple (and cheap) mg90 .

    some day i will buy a duet just for the lulz and make it work. today my country is broke and its too expensive to just buy one for the sake of it.

    anyway i hope u make that "nice" desgin work. cheers!

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    • undefined
      NicoLab28
      last edited by 7 Jan 2019, 10:40

      I spent a crazy time modeling, adjusting, while everything was already done!
      Great minds meet ...

      For the servo, is there a need for power? I put a 25kg that I had, but a 2kg would be enough?
      This would greatly reduce the selector!

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      • undefined
        fma
        last edited by 7 Jan 2019, 11:09

        Do you really need a servo? If you accept to engage the gear as soon as the carriage is on the slot, you can juste use an horizontal bearing to push the levers (they need to be re-designed with lateral slopes, though)...

        Frédéric

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        • undefined
          NicoLab28
          last edited by 7 Jan 2019, 19:09

          It was my first solution, but having tested a Y system, I realized that it was impossible to have the same extrusion speed on both extruders at the same time. (slip, hangs ...)

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          • undefined
            NicoLab28
            last edited by NicoLab28 1 Jul 2019, 20:55 7 Jan 2019, 20:54

            I just tested my board.
            An Ethernet Duet 1.04 ordered on 31/10/18, panel7 + duex5

            She stopped working by making a homing, before touching the stop position.
            I had time to do several homing, test the 2 new engines, and test the servo.
            Servo connected to socket 9, not in force (25kg> 1.5A in force)

            I only have the hotend is 24v (the socket is a little twisted), the bed is 220v on a ssr

            With the power supply 24v (meanwell 25A measured at 24.15v) only, I only have the blue led VIN that turns on, if I reconnect the fan always on, it works.

            In usb, directly on the pc, or by a hub powered, I have my pc that tells me that the device has a peak consomation, duet card appears very briefly in the device manager, I have the 5v which lights up as the 3v, then the 3v collapses as well as the 5v, but the 3v is almost nonexistent.
            The usb led is always on, the led diag from time to time, but not strong.

            When I plug in a power supply of raspberry pi, the 4 leds flash.

            If I understand correctly, there is only a short circuit 24v-> 5-3.3v which can burn the card, there I do not see how I could have done ...

            Is it serious doctor?

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            • undefined
              NicoLab28
              last edited by NicoLab28 1 Jul 2019, 20:59 7 Jan 2019, 20:58

              test done everything unplugged, only 24v or and USB

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              • undefined
                NicoLab28
                last edited by 8 Jan 2019, 19:43

                That's what I felt, not yet looked at what it was ...
                I reconnect the new

                0_1546976450968_IMG_20190108_195931b.jpg

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                • undefined
                  NicoLab28
                  last edited by 8 Jan 2019, 20:25

                  It looks like it's the 5V power supply, I only have the 5V servo that was on the duex5. The 5v power supply comes from Duet?
                  My palper is a piezo, the limits are switches.

                  I reconnected everything on the news, except the MMU and its servo.
                  The panel works. Everything seems ok.

                  The panel is in 5v or 3V?

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                  • undefined
                    dc42 administrators
                    last edited by dc42 1 Aug 2019, 21:50 8 Jan 2019, 21:48

                    The damaged chip is U3, the 5V regulator. The PanelDue works from 5V.

                    What type of servo were you driving from the 5V supply?

                    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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                    • undefined
                      NicoLab28
                      last edited by NicoLab28 1 Sept 2019, 09:40 9 Jan 2019, 09:39

                      this one:
                      https://www.amazon.fr/gp/product/B07GJ6ZCVY/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1

                      can we use an external power supply 5v, and connect the ground together? If I ever want to be more precursive

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                      • undefined
                        NicoLab28
                        last edited by 9 Jan 2019, 09:51

                        Frankly, I have a doubt that this is the servo, but since it is the only new, with 2 steppers, why not.

                        What happens if you exceed the max 1.5a of the 5v power supply? She can not do it anymore, or she burns?

                        Because the servo is given, after reading at 1.9A stall current at locked, but I never forced on the servo, I have not had time ... I have not tested if it still worked .. .

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                        • undefined
                          stweet
                          last edited by 19 Jan 2021, 21:39

                          Did you get the MMU to work with duet ? 🙂

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                          • undefined paddy.quigley referenced this topic 10 Jan 2022, 12:28
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