Multi Z leveling fine tuning



  • Points 0 and 2 alternate...
    Do you have an idea, what parameter could be wrong?
    Its hard to measure the z steppers position exactly relative to the bed.

    Leadscrew adjustments made: 0.130 0.102 0.086, points used 3, deviation before 0.103 after 0.000
    Leadscrew adjustments made: 0.096 0.022 0.122, points used 3, deviation before 0.088 after 0.000
    Leadscrew adjustments made: 0.129 0.099 0.072, points used 3, deviation before 0.096 after 0.000
    Leadscrew adjustments made: 0.067 0.105 0.111, points used 3, deviation before 0.099 after 0.000

    Bed.g

    G28 ; home
    M401 ; deploy Z probe
    G30 P0 X40 Y40 Z-99999 ; probe near a leadscrew
    G30 P1 X155 Y300 Z-99999 ; probe near a leadscrew and calibrate 3 motors
    G30 P2 Y40 X300 Z-99999 s3; probe near a leadscrew

    M402 ; retract probe

    config.g

    M584 X1 Y0 Z4:2:5 E3 ;

    M671 X-20:330:155 Y-105:-105:437 S4 ; leadscrews at front left, front right and rear middle

    0_1531224090261_measurements.PNG

    Front is bottom. X0 and Y0 Lower-left corner of the bed


  • administrators

    Are you certain that the order of the motors in your M671 command is the same as the order in your M584 command? For example, the motor connected to driver 4 (the output labelled E1) should drive the leadscrew at X-10 Y-105.



  • Yes I'm certain, i checked it at least 5 times.


 

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