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Input Shaping and PA

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  • undefined
    PCR
    last edited by 4 Nov 2021, 10:42

    Hello,

    i made some tests with PA an IS.

    PA_Input.jpeg

    Upper one without IS
    The other one with IS

    is this expected @dc42 ?

    This is my IS

    M593 P"ei3" F50.2
    
    undefined 1 Reply Last reply 4 Nov 2021, 11:00 Reply Quote 0
    • undefined
      T3P3Tony administrators @PCR
      last edited by 4 Nov 2021, 11:00

      @pcr can you describe the differences you are seeing? It might be easier with your description as well as the photos.

      Pressure advance works separately from input shaping, although as you have seen input shaping affects PA. I would get IS set to what you want then retune PA to match.

      www.duet3d.com

      undefined 1 Reply Last reply 4 Nov 2021, 11:02 Reply Quote 0
      • undefined
        PCR @T3P3Tony
        last edited by 4 Nov 2021, 11:02

        @t3p3tony yep it seems that with IS in you need Higher PA ;(

        undefined 1 Reply Last reply 23 Nov 2021, 18:26 Reply Quote 0
        • undefined PCR referenced this topic 23 Nov 2021, 08:06
        • undefined
          Argo @PCR
          last edited by 23 Nov 2021, 18:26

          @pcr

          My findings are that increasing PA to almost absurd levels for clean‘ish corners causes other issues in infill areas.
          What are your observations?

          undefined 1 Reply Last reply 24 Nov 2021, 00:44 Reply Quote 0
          • undefined
            Alex.cr @Argo
            last edited by 24 Nov 2021, 00:44

            @argo said in Input Shaping and PA:

            @pcr

            My findings are that increasing PA to almost absurd levels for clean‘ish corners causes other issues in infill areas.
            What are your observations?

            I am running into similar issues. It also seems to effect small features such as small gear teeth.

            Voron2.4/Duet3 SBC+6HC+3HC+1LC+1HCL(x2) - Delta/Duet2 Wifi - CubePro/Duet2 Wifi+Duex5 - Laser/Duet3 Mini5+ - Cel Robox - U̶p̶3̶0̶0̶+/D̶u̶e̶t̶3̶ ̶6̶H̶C̶+̶LC1̶ - F̶T̶-̶5̶/̶D̶u̶e̶t̶2̶ ̶W̶i̶f̶i̶ - S̶o̶l̶i̶d̶o̶o̶d̶l̶e̶

            1 Reply Last reply Reply Quote 1
            • undefined
              sebkritikel
              last edited by 24 Nov 2021, 13:13

              The impacts on PA likely vary with the input shaping algorithm and targeted frequency. I'm running MZV at 23.85 HZ and my PA tuning strips look nearly identical.

              Large(ish?) IDEX - 6HC, 1HCL
              Stratasys Dimension 1200es to 6HC Conversion

              1 Reply Last reply Reply Quote 0
              • undefined oliof referenced this topic 25 Nov 2021, 12:23
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