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Firmware code question.  

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Robin_13
(@robin_13)
Reputable Member
Firmware code question.

 After a thermal runaway that melted the head and damaged the hotend which Prusa replaced under warranty,  my printer (MK3s+ kit) refuses to go through the XYZ calibration  and keeps failing.  I have rebuilt the printer from ground up and XYZ calibration still fails.  I have measured everything I can measure are they are all within specifications from what I can find.  The failure message is "XYZ calibration failed. Please consult the manual." which isn't very descriptive and I have not gotten any answers from Prusa on this yet.

In messages.cpp, I have found this.

const char MSG_BED_SKEW_OFFSET_DETECTION_FITTING_FAILED[] PROGMEM_I1 = ISTR("XYZ calibration failed. Please consult the manual."); ////MSG_BED_SKEW_OFFSET_DETECTION_FITTING_FAILED c=20 r=8

Yet, when I run the XYZ calibration (M45) via Pronterface, I get a good result, I believe.  ( Measured skews: 0.043703 -0.033186 ) 

This may be in reference to one of the calibration points or some strange bug I may have found.  I don't know the exact distances of the reference points that are measured.  From my calculations, from Pronterface results, they are 12.25:6.0  220.0:6.0 220.0:198.125  12.25:198.125

I am trying to learn or figure out what to try next to get my printer to work again since this is frustrating.  I am going through the code to see what and where I can find an answer to the problem.  I am not an experienced coder so I am learning as I go.

Posted : 31/08/2023 7:32 pm
Robin_13
(@robin_13)
Reputable Member
Topic starter answered:
RE: Firmware code question.

Follow up.

After many hours of testing, finally received a new SuperPINDA and it passed on the first run.  Sensor must have been damaged by the heat which was high enough to melt the ASA fan shroud I have on my printer.

 

Posted : 11/11/2023 8:33 pm
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