Tip for servo based Z-Probes!!!



  • My probe, https://www.thingiverse.com/thing:2890290, was having some issues when homing Z. It sometimes had false detections, due to the fact that when it is retracted it is triggered, and was "jumping" the first pass step fo my home z and home all macros.

    All the issues was solved with a simple line after the M280 command within deployprobe.g macro:

    G4 P300 ; Wait 0.3 sec.

    And that is it... Now the probe have time to actually deploy before the Duet try to read it 😄



  • Does adding an R value to the M558 command have a similar effect?



  • @phaedrux said in Tip for servo based Z-Probes!!!:

    Does adding an R value to the M558 command have a similar effect?

    I seems so! Much better if it is. I'll try later (printing a calibrating cube now). Thank you!

    But... it is a timer AFTER the trigger.... Maybe it is not the case - I needed a time between deploy and use of the probe so the servo can move.


  • administrators

    The R parameter inserts a delay just before the start of the probing move. So this delay will occur after calling the deploy macro, and also after any travel move to get to the probe point. If you only need the delay immediately after commanding deployment, then the G4 command in deployprobe.g is more optimal.


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