G29 S0 fails with "Must home printer before G29 bed probing"



  • Hi,

    I want to enable mesh bed leveling with IR probe but get this Error: Must home printer before G29 bed probing

    I have a suspicion this might have to do with my dual Z and U axis.

    Firmware Version: 1.18.1 (2017-04-09)

    14:12:33 G29
    Error: Must home printer before G29 bed probing
    14:11:56 G29 S0
    Error: Must home printer before G29 bed probing
    14:11:49 M557 X10:290 Y5:165 S20
    14:11:41 G28
    14:11:28 M80
    14:11:22 Connection established!
    
    

    Here is my G28 / homeall.g

    ; Relative positioning
    G91
    
    ; Lift Z
    G1 Z5 F6000 S1
    
    ; Course home X and Y
    G1 Y-245 F3000 S1
    G1 X-305 F3000 S1
    
    ; Move away from the endstops
    G1 X10 Y10 F6000
    
    ; Fine home X and Y
    G1 X-15 Y-15 F200 S1
    
    ; Absolute positioning
    G90
    
    ; Go to first bed probe point and home the Z axis
    G1 X25 Y0 F6000
    G30
    
    ; Uncomment the following line to lift the nozzle after probing
    G1 Z5 F100
    
    


  • Is U showing as in unhomed?

    If you do G92 U0 and then try to mesh level does it work?



  • Yes, it did. That worked perfectly. Thanks!


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