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    Help with modded qidi tech 1 starting print height

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    • dakingofhearts2003undefined
      dakingofhearts2003
      last edited by

      I have a qidi tech 1 that i have modded with a duet wifi and a nova hotend. I have been trying to get my print to start at the right height for hours. I need some assistance my fellow creators...🤷

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      • Phaedruxundefined
        Phaedrux Moderator
        last edited by

        https://forum.duet3d.com/topic/5909/guide-for-posting-requests-for-help

        Z-Bot CoreXY Build | Thingiverse Profile

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        • dakingofhearts2003undefined
          dakingofhearts2003
          last edited by

          homez.g homeall.g config.g

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          • Phaedruxundefined
            Phaedrux Moderator
            last edited by

            Have you tried using baby stepping to adjust your first layer?

            Your configs show that you're using an endstop for Z and it sets the height of the z axis as Z0 when it triggers, but how far away from the bed is the nozzle actually?

            Z-Bot CoreXY Build | Thingiverse Profile

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            • dakingofhearts2003undefined
              dakingofhearts2003 @Phaedrux
              last edited by

              @Phaedrux When i home its at the proper height but when i print it lifts up. i deleted my slicer script and just put g28 still isnt right. when i try to microstep down it doesnt respond to those commands for some reason.

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              • Phaedruxundefined
                Phaedrux Moderator
                last edited by

                Post your slicer start gcode as well.

                So you're saying when you home Z the nozzle is touching the bed when the endstop triggers? no gap at all?

                Well if it already thinks you're at 0 it won't let you go down any further. You can remove that limit by changing the M208 Z minima to a slightly negative value, like -1, so that you can baby step down a full mm before it stops you.

                If you find you have to baby step down quite a bit then you should change the homing macro from G92 Z0 to G92 Z whatever amount of baby stepping you end up using.

                Z-Bot CoreXY Build | Thingiverse Profile

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                • dakingofhearts2003undefined
                  dakingofhearts2003 @Phaedrux
                  last edited by

                  @Phaedrux I deleted everything except G28

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                  • dakingofhearts2003undefined
                    dakingofhearts2003 @Phaedrux
                    last edited by

                    @Phaedrux i'm going to try the negative numbers and see what happens

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