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    Input Shaping on a Bed Slinger

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    • JRCLundefined
      JRCL
      last edited by

      With separate x and y axes input shaping not being supported, does that mean you couldn’t use input shaping on a bed slinger style printer? If you can how would one go about it?

      oliofundefined 1 Reply Last reply Reply Quote 0
      • JRCLundefined JRCL marked this topic as a question
      • oliofundefined
        oliof @JRCL
        last edited by

        @JRCL you can absolutely use IS on a bed slinger. Measure the dominant frequency separately on Y and X (either by moving an accelerometer around or by using the Klipper or Marlin reference prints -- I prefer the plastic saving Marlin one at https://marlinfw.org/tools/input_shaping/freq-calibr.html -- note you will need to adjust start and end gcode), then use a base frequency and algorithm that covers both measured values.

        I.e., let's assume you measure 45Hz on your bed and 62Hz on your hotend. Then you would get by choosing (45 +62)/2 = 57Hz and MZV or EI2 as the algorithm.

        <>RatRig V-Minion Fly Super5Pro RRF<> V-Core 3.1 IDEX k*****r <> RatRig V-Minion SKR 2 Marlin<>

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        • JRCLundefined JRCL has marked this topic as solved
        • JRCLundefined
          JRCL @oliof
          last edited by JRCL

          @oliof Coming back to this to ask if you there's any reason this wouldn't work for a CoreXZ

          oliofundefined dc42undefined 2 Replies Last reply Reply Quote 0
          • oliofundefined
            oliof @JRCL
            last edited by

            @JRCL one for @dc42

            <>RatRig V-Minion Fly Super5Pro RRF<> V-Core 3.1 IDEX k*****r <> RatRig V-Minion SKR 2 Marlin<>

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            • dc42undefined
              dc42 administrators @JRCL
              last edited by dc42

              @JRCL a CoreXZ would normally have a moving bed or moving gantry Y axis, so the same technique would be used as for a bed slinger.

              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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