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Hints for accelerometer placeing

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Duet Hardware and wiring
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  • ?
    A Former User @T3P3Tony
    last edited by A Former User 15 Sept 2021, 06:52

    @t3p3tony said in Hints for accelerometer placeing:

    @thedragonlord the input shaping plugin will show the detected frequencies see this thread for the latest development of the plugin:
    https://forum.duet3d.com/topic/24859/inputshaping-plugin-0-1-0-rc7-released-repacked/15

    this is the accelerometer I've bought: https://www.ebay.it/itm/273191600064 (of course I'll upgrade the FW to 3.4 beta 2) in your opinion a normal non shielded flat ethernet cable like this https://www.amazon.it/gp/product/B00UPHN938/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 (wich I already own) could be fine? (Of course following the hint to keep the CS cable as far as possible from other signal cables). In case not what cable would be best?

    Thanks

    undefined 1 Reply Last reply 15 Sept 2021, 07:05 Reply Quote 0
    • undefined
      gloomyandy @A Former User
      last edited by 15 Sept 2021, 07:05

      @thedragonlord No idea if the flat ethernet cable will work or not, you probably just have to try it. If it doesn't then several folks (including myself) have been successful using USB3 cable and wiring in the way described here: https://forum.duet3d.com/topic/22878/software-package-3-3beta3-released/68?_=1624809172098

      ? 1 Reply Last reply 15 Sept 2021, 07:12 Reply Quote 1
      • ?
        A Former User @gloomyandy
        last edited by 15 Sept 2021, 07:12

        @gloomyandy said in Hints for accelerometer placeing:

        @thedragonlord No idea if the flat ethernet cable will work or not, you probably just have to try it. If it doesn't then several folks (including myself) have been successful using USB3 cable and wiring in the way described here: https://forum.duet3d.com/topic/22878/software-package-3-3beta3-released/68?_=1624809172098

        excellent, thanks

        1 Reply Last reply Reply Quote 0
        • undefined
          amjm22
          last edited by 16 Sept 2021, 11:37

          I have a Delta printer using a Duet smart effector, I'm using a Duet3d 6hc3 sys board.

          Where would you mount an accelerometer to the smart effector?

          Wiring is not the issue, it is the physical location.

          undefined 1 Reply Last reply 16 Sept 2021, 14:35 Reply Quote 0
          • undefined
            dc42 administrators @amjm22
            last edited by 16 Sept 2021, 14:35

            @amjm22 I mounted mine on top of the effector, using a single screw to attach it to one of the 3 mounting holes in the effector, with a couple of nuts as spacers.

            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

            undefined undefined 2 Replies Last reply 16 Sept 2021, 14:50 Reply Quote 1
            • undefined
              ignacmc @dc42
              last edited by 16 Sept 2021, 14:50

              @dc42 Any rigid location on top of the effector could suffice?
              I am thinking of using double side tape, or printing a small base to be glued on top

              Predator with Duet3 Mini 5+, Smarteffector v4 and LGX Lite Extruder

              undefined 1 Reply Last reply 16 Sept 2021, 20:21 Reply Quote 0
              • undefined
                amjm22 @dc42
                last edited by 16 Sept 2021, 18:21

                @dc42 Much appreciated! I will give it a shot when the accelerometer arrives! i post the results.

                1 Reply Last reply Reply Quote 0
                • undefined
                  dc42 administrators @ignacmc
                  last edited by 16 Sept 2021, 20:21

                  @ignacmc said in Hints for accelerometer placeing:

                  @dc42 Any rigid location on top of the effector could suffice?

                  Yes. Here is a photo of the way I mounted mine.

                  2021-09-16 21.19.11.jpg

                  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

                  undefined 1 Reply Last reply 23 Jan 2022, 14:12 Reply Quote 1
                  • undefined
                    janjoh @dc42
                    last edited by 23 Jan 2022, 14:12

                    @dc42 That photo made me smile. I came here looking for advice on accelerometer placement, and invisioned all sorts of fancy printed mounts. Then I find this. Quick. Cheap. Efficient. Moving on.

                    Thank you. 🙂

                    undefined 1 Reply Last reply 29 Jan 2022, 13:59 Reply Quote 0
                    • undefined
                      tommyb @janjoh
                      last edited by 29 Jan 2022, 13:59

                      @janjoh I would guess the corner mount like will have it's own artifacts. It may or may not matter, but looks like a spring board and will certainly have a dominant frequency related to the mounting alone. Simply test on a nice solid block of Al or something by mounting in the same fashion and give it a few taps in x, y, z directions and see what you get.

                      undefined 1 Reply Last reply 30 Jan 2022, 13:43 Reply Quote 0
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                        dc42 administrators @tommyb
                        last edited by 30 Jan 2022, 13:43

                        @tommyb if the screws are tight then I am sure that the resonant frequencies of the mounting mechanism will be much higher than those of the arms + effector mass that I am interested in.

                        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 0
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