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Height map makes my bed look warped…Why???

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Tuning and tweaking
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  • undefined
    number40fan
    last edited by 14 Aug 2017, 21:01

    Want to give 9 factors a shot?

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      Aflac01
      last edited by 14 Aug 2017, 21:10

      i thought it only went to 7

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        number40fan
        last edited by 14 Aug 2017, 21:13

        Nope, all the way to 9.

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          Forgvn77
          last edited by 14 Aug 2017, 21:22

          I ran into more issues when I calibrated over 6 factors. Six ended up working great for me. More wasn't better in this case when I set up my delta. The trigger height corrections are what you'll need to establish and plug in. Once you get those nailed, you'll be off and running.

          Velleman K8200, Geeetech G2S Pro (x2), Geeetech Rostock 301 retrofitted with Duet
          Make A Difference!

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          • undefined
            Aflac01
            last edited by 14 Aug 2017, 21:31

            9 factors is looking better for me

            im using a piezo in the print head so i have no variation in trigger height

            Calibrated 9 factors using 17 points, deviation before 0.159 after 0.034

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              number40fan
              last edited by 14 Aug 2017, 21:33

              That's a lot better. What are your M665 and M666 changes?

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                Aflac01
                last edited by 14 Aug 2017, 21:36

                config has
                M665 R135.59 L330.77 B135.59 H235.444
                M666 X0 Y0 Z0

                after calibration i got
                M665 Diagonal 344.383, delta radius 138.954, homed height 235.472, bed radius 135.6, X -0.050°, Y -0.359°, Z 0.000°
                M666 Endstop adjustments X-0.20 Y0.13 Z0.07, tilt X-0.23% Y0.22%

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                  number40fan
                  last edited by 14 Aug 2017, 21:41

                  M500 will save that to override.g and if you have M501 at the end of your config.g, it'll use those settings.

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                    Aflac01
                    last edited by 15 Aug 2017, 01:53

                    so yes, 9 made the calibration look good, but it did not make it print good. back to 6 i guess

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                      number40fan
                      last edited by 15 Aug 2017, 02:48

                      What is wrong with the print?

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                        Aflac01
                        last edited by 15 Aug 2017, 04:16

                        Things where great near the center, but out near the edges it went right off the bed. I guess it
                        changing the arm length by 14mm was not the best

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                          number40fan
                          last edited by 15 Aug 2017, 13:56

                          How big is your bed?

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                            Dougal1957
                            last edited by 15 Aug 2017, 19:08

                            try 8 factor cal

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                              Aflac01
                              last edited by 16 Aug 2017, 00:44

                              Is there a list somewhere of what the different factors are? i saw one once but it only went up to 7.

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                                Aflac01
                                last edited by 16 Aug 2017, 01:48

                                https://duet3d.com/wiki/Calibrating_a_delta_printer

                                found it, going to give 8 a try

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                                  Aflac01
                                  last edited by 16 Aug 2017, 04:02

                                  I think that is better, you can even see on the heightmap where i have binder clips holding the heatspreader plate down.

                                  Calibrated 8 factors using 17 points, deviation before 0.087 after 0.056

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                                    number40fan
                                    last edited by 16 Aug 2017, 15:02

                                    Earlier you said it went off the bed. Are you saying it tried printing off the edge of the bed? Is your build plate 270mm+?

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                                      Aflac01
                                      last edited by 16 Aug 2017, 22:21

                                      it actually went off during a calibration not a print, the first time through the calibration it looked good, later it went off the edge, yes the bed itself is 310,

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                                        number40fan
                                        last edited by 16 Aug 2017, 22:31

                                        Is this a Rostock, by chance?

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                                          Aflac01
                                          last edited by 16 Aug 2017, 23:08

                                          in concept yes…but i think the heat bed is the only actual real rostock part,

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