Tronxy X5SA Pro - Z-Probe not moving over the bed area

  • I have a Duet 3, with an unmodified Tronxy X5SA Pro, and I have all of the stepper motors moving in the right directions, and the Z-Probe sensor seems to work. However, when I try to do an initial z-home, the carriage will not move in to where it can detect the bed, and therefore will bury the head down into the print-bed, if I don't stop it.

    Here are my settings related to the z-probe. Any guidance would be appreciated.

    ; Axis Limits
    M208 X30 Y20 Z0 S1                             ; set axis minima, I tried tweaking these but it did not work
    M208 X330 Y330 Z400 S0                       ; set axis maxima
    ; Endstops
    M574 X1 S1 P"!"                        ; configure active-high endstop for low end on X via pin !
    M574 Y1 S1 P"!"                        ; configure active-high endstop for low end on Y via pin !
    M574 Z1 S2                                   ; configure Z-probe endstop for low end on Z
    ; Z-Probe
    M558 P1 C"!" H5 F120 T6000             ; set Z probe type to unmodulated and the dive height + speeds
    G31 P500 X40 Y10 Z2.5                          ; set Z probe trigger value, offset and trigger height, was X-30, Y-10, but that was no good as well
    M557 X15:215 Y15:195 S20                     ; define mesh grid


  • OK, I figured it out, I needed to update the homez.g and homeall.g files with the following line:

    G1 X50 Y25 F6000 ; go to first probe point

  • Moderator

    Yes, you must place the probe where you want it to probe. I would suggest you use the center of the bed.

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