Printer failing to find calibration points during Z calibration
 
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Printer failing to find calibration points during Z calibration  

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Katherine1
(@katherine1)
New Member
Printer failing to find calibration points during Z calibration

I've been working on my printer over the last couple days, and I needed to do a Z calibration. Unfortunately, when it goes to find its first calibration point, its searching a good 1-1.5cm above the bed, and as a result fails. After failing, the printer reports that Z 0 is up at where it's currently sitting. The selftest passes. What can I do about this?

Posted : 20/11/2018 12:32 am
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(@)
Illustrious Member
Re: Printer failing to find calibration points during Z calibration

Did you mess with the PINDA probe height at all?

Have you run a full XYZ cal cycle? 6.3.5 of the manual
https://prusa3d.com/downloads/manual/prusa3d_manual_mk3_en_3_04.pdf

Posted : 20/11/2018 12:43 am
Katherine1
(@katherine1)
New Member
Topic starter answered:
Re: Printer failing to find calibration points during Z calibration

Yes, and I adjusted the Pinda so that it's a zip tie's thickness higher than the nozzle. I tried readjusting the PINDA position after, but it made no difference to the height it tries to find the calibration points at. I did determine with a piece of metal and the PINDA status screen that it is working. It just doesn't detect the calibration points from that high up. I wiped my calibration and did a full selftest and XYZ calibration. The selftest passed. When it got to the XYZ calibration, it did what I described in the first post.

Posted : 20/11/2018 12:57 am
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(@)
Illustrious Member
Re: Printer failing to find calibration points during Z calibration

You might try this ... but the last paragraph reduces my confidence it will help.

7.2.6 Factory reset
The factory reset is used when troubleshooting the printer and resetting it to the factory state.
Entering the factory reset menu:
1. Press and release the reset button​(marked X and positioned under the control knob on the LCD panel)
2. Press and hold the control knob​until you hear a beep
3. Release the control knob
Options:
● Language - ​option resets the language preference.
● Statistics ​- will erase all the recorded print time and material from the memory.
● Shipping prep - ​which resets only the printer language selection. All the calibration data including the Live adjust Z remain intact. Even though the calibration data are still present and functional, the printer will prompt the user once to run the Calibrate Z function. This “light” factory reset is mainly used for resetting of assembled printers before shipping out of the factory so that users can select their language and run Calibrate Z after unpacking.
● All data​ - which resets everything including all calibration data and the whole EEPROM is cleaned. After this reset, the user is expected to go through the calibration flow again, except setting the probe height.

Posted : 20/11/2018 2:03 am
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