Clean the nozzles
While using the Ultimaker 3, material can get stuck to the nozzles. Although this will not
damage your printer, it is recommended keep the nozzles clean in order to achieve the
best print results.
Before starting a new print, always check the nozzles. At least once a month, remove the
plastic from the outside of the nozzles by taking the following steps:
1. On the Ultimaker 3, navigate to Material/PrintCore > PrintCore 1 > Set temperature.
Rotate the dial and set the temperature to 150 °C. Repeat this for print core 2 and
make sure this print core is lowered
2. Wait for the plastic on the outside to get soft. When the nozzles are hot, carefully
remove the material with tweezers
Caution
: Leaving the build plate clamps open may damage your Ultimaker 3 when
the build plate is raised.
Caution
: Do not touch the nozzles and be careful while cleaning it as they will
become hot.
Cleaning the Ultimaker 3 – Ultimaker Support
https://support.ultimaker.com/hc/en-us/articles/...
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