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UM3 error: Printcore in print head slot 1 nozzle size mismatch

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Posted · UM3 error: Printcore in print head slot 1 nozzle size mismatch

Need help with my Ultimaker 3 extended.

Error: Printcore in print head slot 1 nozzle size mismatch.

 

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Posted · UM3 error: Printcore in print head slot 1 nozzle size mismatch

I guess you have set a different print core (nozzle size) in Cura. When you now want to print, the printer notifies you about that.

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Posted · UM3 error: Printcore in print head slot 1 nozzle size mismatch

So a few things.

 

What nozzle did you slice with?  Did you slice with AA 0.4 and BB 0.4?

I'm not sure if the left core is slot 1 or slot 0 so it could be either core as far as I'm concerned.

Also sometimes a core is misprogrammed.  So go through the menus - it tells you what the printer *thinks* is loaded into the left and right slots.

 

So there - you have 2 things to check.  You can of course just ignore.  I do it all the time.

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Posted · UM3 error: Printcore in print head slot 1 nozzle size mismatch

I slice with nozzle1 - AA 0.4 ( left core is slot 1)

Disable BB 0.4

 

Where in the menus can I chack what the printer *thinks* is loaded into the left and right slots and corect it if needed?

Screenshot_1.jpg

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Posted · UM3 error: Printcore in print head slot 1 nozzle size mismatch

MATERIAL/PRINTCORE

scroll down to

PRINTCORE 1 but don't click it.  Look at the bottom of the display.  Repeat for PRINTCORE 2

 

If one of your cores is programmed wrong (for example it's an AA 0.4 but the printer thinks it's an AA 0.8) then you can fix it by using the instructions here:

http://gr5.org/cores/

 

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Posted · UM3 error: Printcore in print head slot 1 nozzle size mismatch

I checked the menu, everything is right there.

So, I just click Ignore and continue printing.

Maybe in the next firmware versions there will not be this problem.
Thanks for the help.

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Posted · UM3 error: Printcore in print head slot 1 nozzle size mismatch

Interesting. I just restored one of my UM3's from a recovery file on a SD card. The printer was having wifi issues (would not create a hotspot) which did not solve the issue by the way. Have just been calibrating the XY offset which seems to be printing a different calibration layout to my other 2 UM3's (all same firmware). And have now just seen the error mentioned in this post. Have triple checked that core AA 0.4 was used in slicer, AA0.4 is in the machine, and machine also reads that AA0.4 is installed!

 

Been a sad sad week for my fleet so far 😞

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Posted · UM3 error: Printcore in print head slot 1 nozzle size mismatch

I suspect there is a problem in reading the data from the print core.

 

Try switching your two print cores. Is the error then in the same slot, or does the error move to the other slot?

If the error remains in the same slot then the problem is with the connection points in the slot being dirty. Clean those

If the error moves to the other slot, then try cleaning the print core's contact points.

 

When the above doesn't fix it, then please try to get more data for us to investigate this. When you start a print and it complains about the nozzle size mismatch, then I would like to see the debugging data that's normally hidden:

1) Is your printer in developer mode? The just scroll down the error message on the screen a bit more and post a photo of the data there.

2) When your printer isn't in developer mode, open a web browser and surf to the printer's home page. Select there 'Event Log' and copy / paste the error message related to the print cores not matching.  The web page address will be something like: http://10.183.3.120/info/log.html

 

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