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    Configure nonlinear extrusion

    Tuning and tweaking
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    • Denis
      Denis last edited by

      My question concerns the M592 command. On the forum, I found two variants of the XLS table, which give me different results A and B with the same input data. No tests, like in Marlin, that would visually give the settings, no XLS tables officially confirmed for the calculations. Help please, give a reference confirmed table so that I can calculate my values. I would like to see in the documentation an applied instruction with customization tools, and not pure math.

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      • GPetropoulos
        GPetropoulos last edited by

        Is there any answer for this? I am trying to find out how to configure nonlinear extrusion as well.

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        • dc42
          dc42 administrators last edited by

          Please provide the extrusion measurements you want to use to calibrate nonlinear extrusion, and I will test them on the two spreadsheets that I know about.

          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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          • Denis
            Denis @dc42 last edited by

            @dc42, I ask for help. I use an extruder, which at rest has 840 steps to extrude 50mm filament. For extruding 50 mm at a speed of 1 mm / s, 750 steps are required. If you take 750 steps, then the next chart looks like
            2 mm / s - 45 mm
            3 mm / s - 43 mm
            4 mm / s - 43 mm
            5 mm / s- 43 mm
            6 mm / s - 42 mm
            Using tables that I found on the forum gives a negative value of "A"

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            • dc42
              dc42 administrators @Denis last edited by

              @denis said in Configure nonlinear extrusion:

              @dc42, I ask for help. I use an extruder, which at rest has 840 steps to extrude 50mm filament. For extruding 50 mm at a speed of 1 mm / s, 750 steps are required. If you take 750 steps, then the next chart looks like
              2 mm / s - 45 mm
              3 mm / s - 43 mm
              4 mm / s - 43 mm
              5 mm / s- 43 mm
              6 mm / s - 42 mm
              Using tables that I found on the forum gives a negative value of "A"

              That makes sense because you have a big drop between 1mm/sec and 2mm/sec and a smaller drop between 2mm/sec and 3mm/sec. If you are sure those measurements are correct and reproducible, don't worry about having negative A figure.

              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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