Clean the feeders and Bowden tubes
After many hours of printing, or when material has been ground down, small filament
particles can build up in the feeder. These can end up in the Bowden tubes or print
cores, which can impact print quality.
Clean the feeders and Bowden tubes at least once a month, or after experiencing an
issue with filament grinding.
Clean the feeders
1. Remove the material by navigating to
Material/PrintCore > Material [x] > Unload
. After
this, turn off the printer
2. Blow into the feeder to get the filament particles out. If necessary, use an air blower
or compressed air
Cleaning the Ultimaker 3 – Ultimaker Support
https://support.ultimaker.com/hc/en-us/articles/...
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