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    What determines the Z-zero point

    Tuning and tweaking
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    • Captain_sq
      Captain_sq last edited by

      Hi guys,
      I have a Tronxy X5S which I have fitted a Duet Wifi and a custom made extruder. The Duet is using independent drives for the two Z-motors and I have setup a macro for the leadscrews compensation using the Escher IR-probe that works nicely. The old Z-home sensor is used as before connected to the Z-endstop sensor input.

      Now, the question is, what of these determines the actual Z-zero position? Is it the Z-endstop homing sensor or is it the leadscrew compensation bed probe operation?

      Custom made Kossel Mini - Duet WiFi / Modded Tronxy X5S - Duet WiFi / Prusa i3 MKIII


      Embedded systems designer, RC Pilot, maker and Gadget-o-holic

      dc42 1 Reply Last reply Reply Quote 0
      • dc42
        dc42 administrators @Captain_sq last edited by

        @captain_sq said in What determines the Z-zero point:

        Hi guys,
        I have a Tronxy X5S which I have fitted a Duet Wifi and a custom made extruder. The Duet is using independent drives for the two Z-motors and I have setup a macro for the leadscrews compensation using the Escher IR-probe that works nicely. The old Z-home sensor is used as before connected to the Z-endstop sensor input.

        Now, the question is, what of these determines the actual Z-zero position? Is it the Z-endstop homing sensor or is it the leadscrew compensation bed probe operation?

        Both homing and leadscrew adjustment set the Z=0 position, so whichever happens latest will be the one that matters. For example, if you have a G28 homig command in your slicer start GCode, that homing operation will reset the Z=0 position.

        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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