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    Homing fails on printerbot

    Scheduled Pinned Locked Moved
    Tuning and tweaking
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    • Phaedruxundefined
      Phaedrux Moderator
      last edited by Phaedrux

      Can you describe where on your printer the end stops are located? If you are looking at the printer from the front, the 0,0 position would be the front left corner. X- would be to the left, Y- would be towards the front.

      Have you gone through the links provided above?

      Z-Bot CoreXY Build | Thingiverse Profile

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      • nerdiatorundefined
        nerdiator
        last edited by

        This is the position where all endpoints are being triggered:

        IMG_20191202_195330.jpg

        This is the opposite position of the endpoints:

        IMG_20191202_195341.jpg

        And I've been through your links, and I do see the endpoint status switching from yes to no in the machine settings when I move the bed and extruder

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        • Phaedruxundefined
          Phaedrux Moderator
          last edited by

          If you send M119 in the gcode console with the endstop switches not pressed, what does it reply with? And if you manually depress the switches, what does it reply with?

          Z-Bot CoreXY Build | Thingiverse Profile

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          • nerdiatorundefined
            nerdiator
            last edited by

            M119 without endstops pressed:
            Endstops - X: not stopped, Y: not stopped, Z: at min stop, Z probe: at min stop

            M119 at endstop position:
            Endstops - X: at min stop, Y: at max stop, Z: at min stop, Z probe: at min stop

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            • Vetiundefined
              Veti
              last edited by

              your homing files require at least firmware version 2.03

              which one are you running?

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              • nerdiatorundefined
                nerdiator
                last edited by

                I'm running on 2.0.4

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                • Phaedruxundefined
                  Phaedrux Moderator
                  last edited by

                  So the Z endstop shows as activated even when it's not activated?

                  Z-Bot CoreXY Build | Thingiverse Profile

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                  • nerdiatorundefined
                    nerdiator @Phaedrux
                    last edited by

                    @Phaedrux I didn#t move the Z, it's probably just still activated because it's so low. I wanted to make X and Y work first

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                    • Phaedruxundefined
                      Phaedrux Moderator
                      last edited by

                      Can you try modifying your homing files to remove the H2 from the second back off movements for X and Y?

                      ex: G1 H2 X5 F6000 ; go back a few mm

                      Z-Bot CoreXY Build | Thingiverse Profile

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                      • nerdiatorundefined
                        nerdiator
                        last edited by nerdiator

                        I tried that but it doesn't seem to help. I get an error saying "Insufficient axes homed"

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                        • Phaedruxundefined
                          Phaedrux Moderator
                          last edited by

                          Mind you I only mean the moves that have X and Y movement. The move to lift Z at the start would stay the same.

                          If you're still getting that error message after only removing the H2 from the X and Y moves it would tell me that the X and Y axis are not actually getting homed on that first pass.

                          Z-Bot CoreXY Build | Thingiverse Profile

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                          • nerdiatorundefined
                            nerdiator
                            last edited by

                            Yes that's what I did. Only for the X and Y moves, but they don't get properly homed

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                            • dc42undefined
                              dc42 administrators
                              last edited by dc42

                              Something isn't right with your config. You indicated that the position where the X and Y homing switches get triggered is the corner of the bed marked with an X. That must be either X0 Y0 or X160 Y160. Assuming it is the bed that moves in Y and the print head that moves in X, as things stand your config says you have the X endstop at X0 and the Y endstop at Y160, which if those coordinates are where the X is, would give you mirrored prints.

                              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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                              • nerdiatorundefined
                                nerdiator @dc42
                                last edited by nerdiator

                                @dc42 Oh I see. I just configured it until it moved to 0,0. But I probably made a mistake with the endstop location. But still, it should stop when the endpoint is triggered, right?

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                                • Vetiundefined
                                  Veti
                                  last edited by

                                  on moves that have the parameter H1.
                                  if you really have a recent firmware.

                                  are you sure that you did not swap x and y endstops?
                                  what kind of endstops are they?

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                                  • nerdiatorundefined
                                    nerdiator @Veti
                                    last edited by

                                    @Veti They are buttons that give a 3.3V current when pressed, 0V when not pressed.

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