Sensorless homing and delta auto configuration



  • Just a small question:

    If I were using sensorless homing from a duet wifi (which I am), along with a 10 point calibration before every print are there any sorts of problems I should expect to come up?

    It is using smart effector.

    I am considering adding "real" endstops such as optical (I have a few).


  • administrators

    @zzing said in Sensorless homing and delta auto configuration:

    If I were using sensorless homing from a duet wifi (which I am), along with a 10 point calibration before every print are there any sorts of problems I should expect to come up?

    I tried this on my delta and I found it workable. If your calibration is stable, you may get away with 3- or 4-factor calibration, because it's only the endstop corrections that need adjusting to account for the imprecision of stall homing.

    Make sure that stall homing works even when the printer has been running and the motors are warm. Stall sensitivity increases with temperature, so if the motors get hot and you have the M915 threshold set too low, you could get false stall reports, leading to the firmware thinking the towers are homed when they are not.



  • I have been using it for a while, and it always seems to work. My main concern was if the math could provide issues because of the imprecision.


  • administrators

    @zzing said in Sensorless homing and delta auto configuration:

    I have been using it for a while, and it always seems to work. My main concern was if the math could provide issues because of the imprecision.

    No, because 1 or possibly 2 calibration cycles removes the imprecision.


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