Calibration failed | Prusa Knowledge Base

The Calibration failed error occurs once there is a problem with the calibration. The printer was unable to properly detect the calibration point/s and can not successfully finish the calibration. In order to operate the printer, you must find the source of the problem and fix it.

For MK2.5/MK2.5S printers that have the SuperPINDA installed, you MUST use firmware version 3.9.3, or above!

There can be five different error messages related to the Calibration failure:

XYZ calibration failed. Bed calibration point was not found.
XYZ calibration failed. Please consult the manual.
XYZ calibration failed. Left front calibration point not reachable.
XYZ calibration failed. Right front calibration point not reachable.
XYZ calibration failed. Front calibration points not reachable.

Troubleshooting

Bed calibration point was not found & Please consult the manual

Both of these error messages point to the same source. The printer was unable to find any of the calibration points. Therefore, there is almost for sure something wrong with the assembly. Don't re-assemble your printer just yet, but see the troubleshooting points of the following articles.

Left, Right, or Front calibration points not reachable

Unlike the other error messages related to the calibration, in this one, the printer was actually able to find some calibration points, but not all of them. However, troubleshooting remains the same. As that is the only way how to easily find out where the problem lies.

Before you start, remove the steel sheet if you own the Original Prusa i3 MK3 or MK2.5.

Go to LCD Menu -> Calibration -> Auto home.
Inspect where the PINDA sensor ends up. It must be within the First calibration point.
After checking the 1st calibration point, move the extruder with your hand, to the other end of the heatbed and inspect the 2nd calibration point.
If the PINDA sensor wasn't inside of any of the circles. Follow the instructions in the PINDA sensor misaligned.

7 comments

Susan Brown

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about 3 years ago

I have a new PrusaMini, and by starting up there is an error at 4/16 by calibration. The printer stops. Self-test was allright. What to do?

David

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about 3 years ago

Hi Suzan! This article actually refers to the calibration on the i3 series printers, not MINI. Does the printer stop mesh bed levelling on the 4rd point before printing? You might want to contact support via prusa3D.com to resolve the issue.

Se9n

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over 3 years ago

So I had the same problem so I rolled back to 2.5 then upraded my firmware using every incremental release tell I got to the latest and now it's been working without issues now.

JackInTN

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almost 4 years ago

where can I download the manual or 'cheat sheet' that has calibratoin hints? I am getting "

XYZ calibration failed. Please consult the manual.but I cannot find what to do?

David

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almost 4 years ago

Hi Jack! What type of the printer you are using? Any upgrades, maintenance or modifications you have done lately?

JackInTN

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almost 4 years ago

Factory built 2.5 that has the 2.5S upgrade. It worked back then. 3.10.0 firmware. I recently took it out of storage for a year, did general maintenance, updated firmware and gave it a try. Had to fix filament block. I even did a factory reset yesterday. Still no joy. The super Pinda seems to detect ok. Adjusted kinda to be 1mm higher than nozzle. I did try with it lower, no joy then either. I replaced display with new one (fixed a different issue), and have new 12v heater bed to go on, but this one works still, but it is scratched. Both bed and plate are from Prusa directly from CZ. Yesterday I found the pinda was not over target spots, so corrected that. Before the factory reset. Thanks for the reply.

David

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almost 4 years ago

Hi! Does the printer hit both X and Y endstops correctly? Make sure the printer is stock, MK52 heatbed, latest MK2.5S print head, there is no 3rd party accessory like a fan cover installed, make sure zip-ties do not interfere with the frame, Rambo-cover or the PSU. There are some different parts for the 2.5S and 3S/+: cable-holder on the back of the extruder has more clearance for the MK2x frame. There must be the endstop block installed to the bottom of the x-carriage. Make sure it is not molten. Check you have the correct Y-belt holder, not the MK3x one. Make sure the hotend is inserted correctly into the print head and the PINDA height is set according to [id=312|title=the assembly manual] (approx. 0,6mm above the nozzle.) - this is why it might fail the XYZ calibration too.

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almost 4 years ago

I tried everything from... adjusting the SuperPINDA probe, tightening the belt for x-axis, and lubbing rods... when I "Auto Home", the probe is shifted to the right, so I checked my x-axis belt and motors, but did not find anything wrong.
I also tried the Factory Reset multiple times as I was adjusting the PINDA probe.
Any other ideas I could try?

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almost 4 years ago

I forgot to mention that I am getting:

XYZ calibration failed. Please consult the manual.

Before installing the 2.5 upgrade kit, it was working fine, so I have no clue why it's not working... very frustrating.

Giuliano - Official Prusa CS

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almost 4 years ago

Hello. Check also if the pulleys are well tightened to the motor shafts. In any case, it's better to troubleshoot this with the Tech Support via email or live chat.

kohar.scott

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over 4 years ago

How do I contact tech support or live chat as suggested in previous messages? I'm having constant bed calibration failure and wondering if it has to do with the pinda sensor flickering and a chattery sound to the calibration? Wondering if it's normal for the sensor to flicker at all during calibration.

Official Prusa CS

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over 4 years ago

Hi, you can use email ([email protected]) or LiveChat (https://shop.prusa3d.com/).