Can't get CALIBRATE_Z to work about klipper_z_calibration HOT 9 CLOSED

Ok, then please tune your z endstop position. You don't need to fine tune it as the z calibration will take care of it, but roughly it should fit.

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What do you mean by tuning it?
I've set my z offset against the print surface, so height of z endstop is about right now, or I'm missing something?

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Oh, sorry, forget about it. I had somehow read a different error. It seems that the endstop is already triggered when it tries to probe on it. Is your wiring ok? Is your nozzle too low while moving to the endstop (set safe_z_height to a higher value)?

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Endstop is triggered when nozzle touches it, not before. Wiring is ok since it's been printing already before and haven't had any other issues.

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video
That's how it looks like.

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Ok, other person on Voron discord suggested me to change this parameter
homing_retract_dist: 3
I originally had it set to 0. After that it started to calibrate offset.
Now need to find out how to tune it, as calculated value 'almost' crashed nozzle into my bed :)

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Yes, that's what it looks like. It does not retract and then with the second probe it's already triggered.

Ouch! Please test the result carefully (as documented in the wiki) until you found the correct switch offset. There is also a command to determine a value with which you can start: https://github.com/protoloft/klipper_z_calibration/wiki/How-To-Use-It#command-calculate_switch_offset

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Ok, I knew I didn't make that setting up on my own. Since I have Sensorless homing + z endstop + klicky I knew I saw it somewhere that suggest changing that setting to zero, and it was in official Voron docs regarding sensorless homing :) I know it's regarding X and Y but probably I just misunderstood it and changed it for Z as well.

voron docs

IMO it would be worth mentioning that in your configuration/installation to double check that setting, even tho i've noticed not many are using sensorless homing (for no reason because it was easiest part of adjusting it since I built this voron out of any other features that I installed/configured)

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Yes, that is correct for sensorless homing (I don't like it much, because the threshold is always a tradeoff between too much force and not working - and the last one can happen in one of one thousand and can result in a damaged printer). But, be careful. You don't use sensorless homing on Z. On the endstop, you need the retract. By the way, 3mm are long - you can reduce it, if you want..

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