Operating Manual for 3D Printer BT1.2
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5.3
Introduction of a new printing string (filament)
Extruder: this is the part of the equipment where the plastic is melted. The filament is pushed in by
the motor, the drive and the pressure feed gear. This system is called a "Direct-Dual drive". The
extruder is designed for filaments with a diameter of 1.75 mm.
1.
Press
"TOOLS"
in the main menu
2.
Press
"FILAMENT CHANGE"
3.
Press
"OUT"
to extend the filament, press
"IN"
to insert the filament
4.
After pressing either
"IN"
or
"OUT"
, the nozzle will start heating automatically. When the temperature
is reached, you will be asked to confirm.
5.
"IN" - insertion
- Insert the string spool into the holder and insert the filament into the hole (see figure
at top left). Hold the filament stopped on the feed wheels, confirm the
"Confirm"
prompt. After
confirmation, hold the filament until the wheels start to pull it down and the door opens slightly.
Note: if you are loading an already used filament,
always cut the melted beginning
, otherwise the filament may
not be inserted correctly! If you are introducing a new one, just make sure the start is straight. If necessary, cut off
the deformed part.
"OUT" - pull out
- hold the filament, confirm the prompt "Confirm", the filament will be ejected from the
extruder.
At the end of this process, the nozzle will still remain in heating mode and must be switched off:
extruder section
filament
opening
teflon tube
cooler
heatbreak
heatblock
nozzle
spring
drive feed wheel
driven pressure feed
wheel
bolt for adjusting the
spring pressure force
View from above,
filament inlet
mounting the filament
spool on the holder
teflon tube
filament
