Removing The Filament From The Estruder; Filament Change - CraftBot CB4 FLOW Series User Manual

nozzle evenly and vertically.
•
Watch out! The freshly spilled molten filament is hot. Avoid contact
with spilled filaments or other flammable materials in the near.
7.3.2.

Removing the filament from the estruder

Never remove the filament from the extruder if the extruder is cold! Always
preheat the extruder before removing or changing filaments. Removing the filament
from a cold extruder might damage it! You don't have to remove the filament
between prints.
•
Heat the extruder as described above
•
Make sure the head is near the build plate, not pressed into the plate or directly
above.
•
When the extruder reaches the temperature required for the filament (note that
different filaments, such as PLA, ABS, and PET filaments have different temperature
characteristics), press the down arrow
hold down or press the filament reverse button
performs the operations.
•
When the gears start to retract the filament, you can safely pull out the rest of the
filament from the guide tube and connect the end of the filament to the spool for
safe keeping. Now you are ready to load a new filament.
7.3.3.

Filament change

•
When changing filaments, note that different filaments, such as PLA, ABS, and PET,
have different temperature characteristics.
•
If you want to replace a material with a higher temperature (eg ABS, PETG) with a
material with a lower temperature (PLA), it is need to heat the head to a higher
temperature so that the previous material can leave the head completely before
the other filament in its place.
•
When changing colors, always push more material out of the head, ensuring that
the replaced color is completely removed from the head. During printing, it may be
uncomfortable to notice that the print color is still blending with the previous color,
for example, changing from red filament to white.
, then the up button button
, which automatically
, and
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