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Detected height printcores issue - Fixed!!


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Posted (edited) · Detected height printcores issue - Fixed!!

Difference between detected height of both PrintCores exceeds realistic values (S5)

 

 

Uploading as after many months of repeat sending of jobs to overcome this error when auto leveling.  We have had this issue intermittently since receiving printer and just assumed it was just the norm.  We overcame it by sending print job again and if that was unsuccessful, by then unloading and reloading printcore BB0.4. 

 

Sadly we had our first ever significant print fail with a 15 hour job and were met with a giant bird's nest and a jammed printer, with filament wrapped all around Y axis mechanism.  It had even caused the Y motor to move thus requiring us to retension the belt.

 

Anyway, after clearing everything out, and getting the machine up and running it started failing every time during the auto leveling process at the start of each print.

 

Finally to the point (sorry for the waffle) it turned out that the silicon nozzle cover was the issue, further more the little metal plate inside the print head that helps retain the nozzle cover was bent! After removing and straightening the said metal plate the silicon cover fits better than it has ever fitted (since even from new- I always thought it looked a little saggy).  Also the magnetic catch functions better than ever before!

 

Hopefully this will be useful to others in the future as we had tried everything suggested on the main Ultimaker trouble shooting guide and various searches have not stated this solution.

 

Point worth noting is the auto height was triggering fault as soon as it tried to action the auto height on the second nozzle - the nozzle was nowhere near the build plate - can only guess the metal plate was forcing pressure on the nozzle causing a false positive.

 

Kind regards, Daniel

Edited by DanielW
Not clear on issue at start of post!!
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