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    Bug G92 E0

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    • taconiteundefined
      taconite
      last edited by taconite

      Hey guys,

      I have a dual extruder setup. I was at first just using the first Extruder and everything was working fine. Now I switched to the second one and right before a print starts, the extruder is doing a huge retraction. I changed no start g-code what so ever.
      When I prime the extruder manually the Extruder position != 0. Now I wanted to set the extruder position to 0 with G92 E0. But no drive is set to 0 (even if the corresbonding tool is active). Only if I set another axis to Zero e.g. G92 Z0 or G92 X0 the Drive 0 and Drive 1 is jumping to zero aswell.

      Any advise?

      Printer: custom delta
      FW: 2.02RC5(RTOS) (2018-11-28b1)
      Slicer: Cura 3.6

      Edit: Now when I set Z to 0 (before I put G92 E0) the drives are set to zero aswell

      Custom ANET A8
      Custom Delta: D-PATCH (Delta Printer with Automatic Tool CHanging) https://forum.duet3d.com/topic/16082/d-patch?_=1596131234754

      All I do here is under this license: CC BY-NC-SA

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      • taconiteundefined
        taconite
        last edited by taconite

        Edit: Its even more strange.

        why is cura all of the sudden putting a retraction in the G-code?

        ;FLAVOR:RepRap
        ;TIME:903
        ;Filament used: 0m, 1.3913m
        ;Layer height: 0.2
        ;Generated with Cura_SteamEngine 3.6.0
        T1
        M82 ;absolute extrusion mode
        M190 S75
        M109 S220
        G28

        M83 ;relative extrusion mode
        G1 F7200 E-1
        ;LAYER_COUNT:101
        ;LAYER:0
        G1 F1200 E-15
        T1
        M109 S220
        M107

        And it is just doing that, when I put the Model on Extruder 2

        On Extruder 1 everything is fine:

        ;FLAVOR:RepRap
        ;TIME:1356
        ;Filament used: 1.42583m, 0m
        ;Layer height: 0.2
        ;Generated with Cura_SteamEngine 3.6.0
        T0
        M82 ;absolute extrusion mode
        M190 S75
        M109 S225
        G28

        M83 ;relative extrusion mode
        G1 F7200 E-1
        ;LAYER_COUNT:101
        ;LAYER:0
        M107
        G0 F15000 X-8.991 Y47.4 Z0.2

        Custom ANET A8
        Custom Delta: D-PATCH (Delta Printer with Automatic Tool CHanging) https://forum.duet3d.com/topic/16082/d-patch?_=1596131234754

        All I do here is under this license: CC BY-NC-SA

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        • Phaedruxundefined
          Phaedrux Moderator
          last edited by

          Upgrade your firmware to 2.04. Release candidate is no longer supported when the full release is issued.

          3.6 is a quite old version of cura by now as well...

          Do you have cura set to use relative extrusion?

          Z-Bot CoreXY Build | Thingiverse Profile

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          • taconiteundefined
            taconite
            last edited by

            Never change a running system 😉 -- I will switch to 2.04 as soon as I find the time to do it proper ( I know its a lazy excuse but I want to read at least the release notes and the change log to know the new features)

            3.6 ist the last one without the new interface (which I really don't like)

            Yes its set to relative extrusion. (I actually can't remember if i put it that way). What is recommended?

            After some more digging I found a clue:
            https://github.com/Ultimaker/Cura/issues/3849

            There is a default retraction on tool change I will switch that one to zero

            Renha created this issue in Ultimaker/Cura

            closed [3.3.1] Unexpected huge retraction on tools change #3849

            Custom ANET A8
            Custom Delta: D-PATCH (Delta Printer with Automatic Tool CHanging) https://forum.duet3d.com/topic/16082/d-patch?_=1596131234754

            All I do here is under this license: CC BY-NC-SA

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            • Phaedruxundefined
              Phaedrux Moderator
              last edited by

              Ah yes, the new interface takes some getting used to. There are a few plugins that make it behave more like the old style that make it not so bad.

              Relative extrusion is preferred.

              Z-Bot CoreXY Build | Thingiverse Profile

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