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    Z probe Offset Calculation. possibility

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    • lukas.aurarum
      lukas.aurarum last edited by lukas.aurarum

      I run a BLtouch.

      I would like to automatically re-calibrate the Z-offset of the BL Touch.

      Can i first Z home the bed first by using the motor stall function on Z axis,
      then re-home Z axis using the BL touch.
      The resulting difference should be the exact Z offset for the BL touch.
      This should all be able to be done in a Macro i believe.

      This would involve setting z endstop to motor stall, the on second pass setting endstop to bltouch.

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      • dc42
        dc42 administrators last edited by

        You could do it the other way round. Home Z using bltouch, then use a G1 S3 Z move with the type of Z endstop set to stall detection. That will adjust the tool Z offset.

        Stall detection is at best accurate to +/- 1 full step of the motor.

        Duet WiFi hardware designer and firmware engineer
        Please do not ask me for Duet support via PM or email, use the forum
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