13 FAQ - Printer maintenance and print issues
13.1 Regular maintenance
13.1.1 Bearings
Every couple hundred hours, the smooth rods should be cleaned with a paper towel. Then
look for the white tube in the package and apply a little bit of the included lubricant on the
smooth rods and move the axis back and forth a couple of times. This cleans the dirt and
increases longevity. For a detailed maintenance guide, please head to
If you feel the axis is not running smoothly anymore, bearings can be taken out and greased
on the inside (they need to be removed from axis because the plastic lip will prevent most of
the grease from getting inside).
13.1.2 Fans
Both fans should be checked and cleaned every couple hundred hours; dust or plastic
build-up can decrease their efficiency or even damage them. Computer cleaner spray will
get the dust away and tweezers can be used for little plastic strands.
Both extruder and part cooling fans measure current RPM (Revolutions Per Minute).
Because of that, they can detect any problem that will cause the fan to slow down, like a
piece of filament getting stuck in it. If you get a fan error, check that it can rotate freely; clear
any debris that may be stuck in it.
Pict. 36 - Hotend cooling fan
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