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b) Insertion of the Filament
Pull the filament hose end from the infeed basic part.
Push the filament roller onto the filament holder and guide the
filament through the filament hose until it escapes on the other
side.
The filament roller must move freely.
Remove the two upper spring screws at the extruder and pull
back the filament guide plate with the ball bearing. Insert the
filament through the bore and past the feed motor into the ex-
truder to the stop.
The two bottom spring screws may need to be loosened a little
to insert the filament as well.
Push the filament hose end into the feed base unit and attach
the two upper spring screws again.
Tighten all spring screws so that the filament is cleanly guided
but cannot catch.
It must be possible for the feed motor to turn without slippage
or catching when pulling or pushing at the filament.
The filament must be guided in a straight line from the top be-
tween the feed motor and the ball bearing into the bore at the
extruder. It must not catch at the bore edge of the extruder.
