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[Problem] Homing Z works with Macro but not with Home Buttons

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Duet Hardware and wiring
z probe homez homing npn sensor macro
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  • undefined
    dc42 administrators
    last edited by 13 Dec 2018, 10:25

    Which firmware version?

    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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    • undefined
      Tommy_Fr
      last edited by 13 Dec 2018, 18:43

      Firmware Electronics: Duet WiFi 1.04 (bought from one of the official Duet suppliers)
      Firmware Version: 2.01(RTOS) (2018-07-26b2)
      WiFi Server Version: 1.21
      Web Interface Version: 1.21.2-dc42

      Printer: FLSun I3 C_Plus
      Board: Duet Wifi 1.04

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      • undefined
        kazolar
        last edited by 13 Dec 2018, 18:47

        I have a fairly complex home z operation, so I put all of it in homez.g and then I call that from homeall.g -- that's simple -- in fact in my homeall.g I simply have
        M280 P5 S160
        G91
        G1 Z4 F200 S2
        M98 Phomeaxis.g
        G90
        M98 Phomez.g

        so I can make whatever adjustments I need in each script for doing homing

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        • undefined
          Tommy_Fr
          last edited by 14 Dec 2018, 12:37

          I noticed what you said @kazolar .

          I fixed toward direction for my Z axis to be rightful and easier to understand. It now goes in right direction (forward goes up, with Z increasing).

          When I use G30, G30 S-1 or G30 S-2, movement is in the wrong direction (so upward instead of downward); before the toward change for my Z axis it was going downward.
          So G30 direction and stop while probe is triggering does not work.

          Printer: FLSun I3 C_Plus
          Board: Duet Wifi 1.04

          undefined 1 Reply Last reply 15 Dec 2018, 15:12 Reply Quote 0
          • undefined
            dc42 administrators @Tommy_Fr
            last edited by 15 Dec 2018, 15:12

            @tommy_fr said in [Problem] Homing Z works with Macro but not with Home Buttons:

            I fixed toward direction for my Z axis to be rightful and easier to understand. It now goes in right direction (forward goes up, with Z increasing).

            Increasing positive Z must be the nozzle moving upwards or the bed moving downwards, so that the Z coordinate is the height of the nozzle above the bed.

            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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            • undefined
              Tommy_Fr
              last edited by 15 Dec 2018, 16:23

              Yes, it was what I meant. Sorry if my english was incorrect. The nozzle is moving upwards with increasing positive Z.

              Printer: FLSun I3 C_Plus
              Board: Duet Wifi 1.04

              undefined 1 Reply Last reply 15 Dec 2018, 17:55 Reply Quote 0
              • undefined
                dc42 administrators @Tommy_Fr
                last edited by dc42 15 Dec 2018, 17:55

                @tommy_fr said in [Problem] Homing Z works with Macro but not with Home Buttons:

                Yes, it was what I meant. Sorry if my english was incorrect. The nozzle is moving upwards with increasing positive Z.

                In that case, I don't understand how G30 commands can be moving in the wrong direction; except that some variations of G30 command move the nozzle t the dive height (M558 H parameter) first, and all G30 commands move the nozzle back to the dive height after probing.

                Have you tested the Z probe as described at https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe ?

                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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                • undefined
                  Tommy_Fr
                  last edited by Tommy_Fr 15 Dec 2018, 18:45

                  M558 H parameter was H5, I have changed it to 1 to try, and there is no difference.
                  Yes, I have tested Z as described at https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe.

                  But I wonder if there is a scale issue, because on DWC I have that for machine control:
                  0_1544899216692_Head_movement-maybe_Z_Scale_issue.png
                  It is normal X and Y lines have different values from Z line.
                  And when I click, for example, on Z+5, nozzle moves five times more longer away than on X+10.
                  So, is there a scale issue?

                  UPDATE: I edited my config.g file and changed Z steps per mm which was totally wrong (I set a M5 lead screw system instead of a M8, but value was still incorrect, changing from 4000 to 2560, I finally changed it to 400 which seems to be right or close of the rightful value). Z line on DWC did not change but movement matches more with the first both lines, X and Y.

                  Printer: FLSun I3 C_Plus
                  Board: Duet Wifi 1.04

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                  • undefined
                    dc42 administrators
                    last edited by 17 Dec 2018, 15:32

                    So does Z homing work now?

                    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 18 Dec 2018, 07:36 Reply Quote 0
                    • undefined
                      Tommy_Fr @dc42
                      last edited by 18 Dec 2018, 07:36

                      @dc42 said in [Problem] Homing Z works with Macro but not with Home Buttons:

                      So does Z homing work now?

                      I just tried with g30 and it seems to work now. I will do further tests in the few coming day.

                      Printer: FLSun I3 C_Plus
                      Board: Duet Wifi 1.04

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                      • undefined
                        Tommy_Fr
                        last edited by 13 Jan 2019, 18:21

                        I tested it within several ways, which with bed compensation and it works great.
                        Thank you to @dc42.

                        You can mark it as solved.

                        Printer: FLSun I3 C_Plus
                        Board: Duet Wifi 1.04

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