Nozzle Cleaning Failed
From the beginning I have constantly problems for all tools Nozzle Cleaning Failed (only once I printed normally) all the other time I am getting this message this article I have read and tried to follow https://help.prusa3d.com/article/nozzle-cleaning-failed-xl_395809#
the last
also during conversation with support
I have tried the following
- increased printing bed temperature to 80c for 10 minutes before printing
- upgraded to the new firmware version 6.2.0
- reset the printer and downgrade version to factory initial setting
nothing so far has helped
what can I do after so many hours of attempts to use the printer?
can I bypass Nozzle Cleaning may be?
RE: Nozzle Cleaning Failed
Is it possible you have a loose nozzle? When it's doing the nozzle cleaning it's looking to get a repeatable result from tapping the bed. If the measurements from the bed are inconsistent it'll fail. Usually this is caused by a dirty nozzle but in assume you've cleaned it with a brass brush?
RE: Nozzle Cleaning Failed
yes I cleaned them
and they are firmly fixed
and it happens with all of them
The most likely cause is a pad of oozed plastic on the nozzle tip.
If it happens with multiple nozzles you probably have oozing caused by damp filament. Dry it.
Cheerio,
RE: Nozzle Cleaning Failed
This might sound a bit simple, but I was having awful problems with 'nozzle cleaning failed' on my Mk4. It began suddenly and would not go away, and the nozzle was new! No bits of filament anywhere. In desperation, having tried everything, I did a recalibration of all functions on the printer. When it got to calibrating the Z axis, I noticed that the right hand side hit the stop before the left by about a millimetre - what? Of course, this axis rarely - if ever - recalibrates after building or buying the printer, unless you make it do so. After this, no more head cleaning failures. At all!
Therefore, it seems like the head thought it was higher off the plate than it actually was onthe left side, when doing the 'touch test', and the error in the Z on the left was responsible for this. Presumably the tolerance in the test parameters was overcome by the error in the left-hand motor's Z height, causing the test failure. How the Z got so far out, I do not know - maybe an inqisitive grandchild rotated the lead screw when the machine was off? So, it's worth checking if you're still having trouble!