Question/Suggestion about current manual delta calibration process



  • Hi,

    I am currently working without a Z-probe so am using the manual method as available in the most recent firmware 1.19 RC1.

    It works well.

    However I am using "mag ball" mounts for my effector plates and for manual calibration I swap in a plate with a dial indicator mounted on it. This indicator is accurate to 0.0005".

    When doing the manual calibration the up/down Z increments are 0.10 mm which is about 0.0040".

    Would it be possible to add two addition up/down buttons with 0.01mm increments?

    If so, could the manual calibration process benefit from the increased accuracy when it came to getting the dial indicator to read zero?

    Thanks.

    Frederick



  • Command the print head down in small steps until the nozzle just touches the bed or just grips a sheet of paper. You may need to send M564 S0 to allow movement lower than where the firmware thinks Z=0 is. You may also wish to create a macro to lower the head by e.g. 0.02mm to get greater accuracy (G91 followed by G1 Z-0.02).

    Found this in the calibration wiki.



  • @number40fan:

    Command the print head down in small steps until the nozzle just touches the bed or just grips a sheet of paper. You may need to send M564 S0 to allow movement lower than where the firmware thinks Z=0 is. You may also wish to create a macro to lower the head by e.g. 0.02mm to get greater accuracy (G91 followed by G1 Z-0.02).

    Found this in the calibration wiki.

    I don't think the current (1.19 firmware) manual calibration routine will allow me to access a macro but I will give it a try.

    The current routine pops up a dialog with a couple of buttons to move up/down by 0.01mm until it just touches the bed.

    That dialog may prevent access to the macros.

    Thanks.

    Frederick


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