Possible bug on baby stepping reset

  • In my printer profile for PETG I am adding some z offset by using baby stepping:

    G28 ; 
    G29 S1 ; Load and activate detailed bed map
    G1 Y1.0 Z0.2 F1000.0 ; prepare to prime
    G92 E0 ; reset extrusion distance
    G1 X60.0 E9.0  F1000.0 ; priming
    G1 X100.0 E12.5  F1000.0 ; priming
    M290 S0.20 ; set baby stepping

    This works perfectly the first time, however if I make a second print (which uses the same starting script) I see the printer using 0.4mm baby stepping offset.
    The documentation states that homing should reset baby stepping but in my case it does not appear to do so.

  • I’ve noticed the same effect with firmware Build 1.20

  • administrators

    Thanks, I have this on my list to test.

  • Yep noticed this too

  • administrators

    I have a feeling that this behaviour was deliberately changed in firmware 1.20 because several users complained that babystepping wasn't remembered from one print to the next.

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