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Z Calibration Off, Printing Above plate #127
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Im having the same issue, i think the solution is to have the start gcode like this:
For me the solution was to Dock the probe after CALIBRATE_Z and pickup again for BED_MESH_CALIBRATE. |
Did you test the offset before starting a print? Was that correct? Otherwise, I would check the PRINT_START macro as @Asiak3 suggested. The reset of the offset is not needed, as the plugin does this anyway. But clearing any mesh, calculating the z offset and probing a new mesh (if needed). |
If I understand correctly, yes I believe I tested the offset before starting a print using a 0.2mm feeler gauge and I believe it was fine. in the mean time I have just been running with the offset that was calibrated not running it every print, it has been great. |
i also forgot to mention that i since i added to the bed_mesh section the it seams to have improved. i dont know if it was the store probe action in between or the zero_reference_position |
I have the same problem. I am using KAMP and a klicky probe. I just swapped to another buildplate and now it is 0.4 to high. If I do a z_calibrate it is spot on. So there has to be something wrong in my config. Has anyone found the problem? Here is my PRINT_START
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The PRINT_START macro seems to be ok. It's important to define the zero_reference_position in your mesh configuration (e.g. the middle of the bed). But, if you use KAMP or any other adaptive bed mesh, then you need to call the CALIBRATE_Z with the BED_POSITION parameter with the current zero_reference_position used by the adaptive mesh. |
Could you please give me an example? I am using KAMP with adaptive bed
mesh. I have no idea how to do what you wrote, but it seems like it is
something that is fast to implement.
tir. 21. nov. 2023, 20:36 skrev Titus Meyer ***@***.***>:
… The PRINT_START macro seems to be ok.
It's important to define the zero_reference_position in your mesh
configuration (e.g. the middle of the bed).
But, if you use KAMP or any other adaptive bed mesh, then you need to call
the CALIBRATE_Z with the BED_POSITION parameter with the current
zero_reference_position used by the adaptive mesh.
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I have never dealt with KAMP or adaptive mesh. I even don't use mesh at all. But, this should be documented in KAMP. You will see that it works correctly if the z calibration is always done in the center of the current (smaller) mesh. |
I was not aware of this zero_reference_position option I needed to set for use of probe and endstop for z. Edit after adding zero_reference_position it is no longer printing way above the build plate. thank you for your help. |
I'm glad it's working now. The calibration adds a gcode offset. It's nothing permanent. |
Sorry to bring this back up again, been having trouble getting it to be consistent it seems to keep raising up on me even when I make adjustments I believe should lower it. I did miss the part about using BED_POSITION, should the CALIBRATE_Z be ran after making the bed mesh with bed_position? I have thought I have followed all the tutorials I've found but not getting the same results... |
I think I've got it working more consistently now, I'm running my Bed Mesh (KAMP) before the Calibrate Z and have added the BED_POSITION Param with the same cords as the zero reference point like you had said before (and in the documentation) but I had missed |
I recently got Klicky and an endstop pin setup to get z calibration set up. I spent the day working though it to get everything I needed, I went to start a print and it is printing way above my build plate it thinks its at 0.2 but it is not and when only homing it is correct.
when manually measuring the z offset it was closer to the Probe value, or the formula alone without subtracting from Probe.
one thing I was wondering was where the Probe value was pulled from?
the position of my z endstop is 4.1 and like i had said before when i home and move it to z 0.2 its measured correct with feeler gauge
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