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17. Filament Change
Before filament change, the extruder must be heated so that the old filament can be cleanly replaced from the extruder.
Do not touch the hot extruder nozzle when replacing the filament, danger of burns!
Always wait for the extruder temperature to be reached at filament change and let the extruder heat for approx. ano
-
ther minute, since the extruder may break otherwise.
(1) Switch on the extruder heating.
(2) Set a temperature suitable for the inserted filament material (ABS: 270 °C / PLA 230 °C).
(3) When the temperature is reached, let the extruder heat for approx. another minute and then move the filament material out
of
the extruder with the manual control:
“Extrude” moves material into the extruder, “Move in” pulls the filament from the extruder.
Here, speed and length of the material that is being conveyed per mouse click can be set.
After
the old filament has been removed from the extruder, you can pull it out of the filament hose and insert the new filament.
Then
proceed as described for “Initial Commissioning”, in “Inserting the Filament” to insert the new filament.
Use the manual control of the software again and let enough material extrude until the residue of the old material has completely
escaped form the extruder (can be recognised by the colour change).
Switch o the extruder heating again and have the extruder cool o.
