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Last updated 2 years ago
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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.


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.
  1. Go to LCD Menu -> Calibration -> Auto home. 
  2. Inspect where the PINDA sensor ends up. It must be within the First calibration point.
  3. 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. 
  4. If the PINDA sensor wasn't inside of any of the circles. Follow the instructions in the PINDA sensor misaligned. 

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