Institut für Werkzeugmaschinen
und Fertigungstechnik
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Manual for PET filament extruding
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann
October 12th 2015
Institute for Machine Tools and Production Technology
Outline
 Explanation of the extruder with whole views
Steps for extrusion:
 Bottle cleaning and crushing
 Drying of the crushed bottles
 Extrude
 Winding
 Troubleshooting
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 2
Institut für Werkzeugmaschinen
und Fertigungstechnik
Whole view (upright)
Compressed air lever
and pressure gauge
Temperature
control
Piston
Melting
gp
pot
Pulling unit
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 3
Institut für Werkzeugmaschinen
und Fertigungstechnik
Whole view (lying)
Winder
Pulling
g unit
12V
Power
supply
Cooling
section
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 4
Institut für Werkzeugmaschinen
und Fertigungstechnik
Safety informations
Warning
W
i off
electric shock
at the heating
elements.
elements
Warning of
incineration at
the heating
elements.
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 5
Institut für Werkzeugmaschinen
und Fertigungstechnik
Bottle cleaning and crushing
1. Wash the
bottles
bottles.
3. Cut the top.
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 6
2. Remove
cover.
4 Cut the base.
4.
base
Institut für Werkzeugmaschinen
und Fertigungstechnik
Bottle cleaning and crushing
1. Cut the main
body.
body
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 7
Institut für Werkzeugmaschinen
und Fertigungstechnik
Bottle cleaning and crushing
1. The cutted
parts should fit
in the melting
pot.
2. The cutted
parts should be
dry (use
sunlight).
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 8
Institut für Werkzeugmaschinen
und Fertigungstechnik
Drying and homogenising of the crushed bottles
1. Leave the
piston upright.
1. Fill the
melting pot of
the upright
extruder with
the parts
(approx 8
(approx.
bottles).
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 9
Institut für Werkzeugmaschinen
und Fertigungstechnik
Drying and homogenising of the crushed bottles
3. Maintain
120°C for
approx. 4h.
1. Push the
main power
lever up.
2. Heat the extruder
step
t by
b step
t to
t
120°C by pushing set
and use the cursor
buttons Start with 60
buttons.
then 90 and then
120°C.
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 10
Institut für Werkzeugmaschinen
und Fertigungstechnik
Drying and homogenising of the crushed bottles
3. Maintain
200°C for
approx. 1h
(depending on
material).
1. Push the
compressed air
lever gently to
the left. The
piston
i
will
ill move
down.
2. Heat the extruder
to 200°C.
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 11
Institut für Werkzeugmaschinen
und Fertigungstechnik
Extrude
1. Lay down the
extruder.
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 12
Institut für Werkzeugmaschinen
und Fertigungstechnik
Extrude
1. Plugin
g the
cooling section
and fill it with
approx. 70°C
hot water (1,2
litres).
2. Water level
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 13
Institut für Werkzeugmaschinen
und Fertigungstechnik
Extrude
1. Plugin the
pulling unit and
ensure the
wheels are
rotating in the
right
g direction.
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 14
Institut für Werkzeugmaschinen
und Fertigungstechnik
Extrude
1. Heat up to
217°C.
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 15
Institut für Werkzeugmaschinen
und Fertigungstechnik
Extrude
1. Filament
1
should now start
to extrude.
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 16
Institut für Werkzeugmaschinen
und Fertigungstechnik
Extrude
1. Lay the
filament between
the wheels in the
pulling unit.
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 17
Institut für Werkzeugmaschinen
und Fertigungstechnik
Winding
1. Plug in the
winder
winder.
2. Mount the
filament into the
winder.
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 18
Institut für Werkzeugmaschinen
und Fertigungstechnik
Winding
1. The filament
should be
winded to the
drum.
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 19
Institut für Werkzeugmaschinen
und Fertigungstechnik
Winding
1. The filament
should have a
thickness of
1,75mm.
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 20
Institut für Werkzeugmaschinen
und Fertigungstechnik
Troubleshooting
If too much air bubbles
appear inside the
melted PET, close the
compressed air supply
and wait for 15
minutes, so that the
PET can fully
f ll heat
h t
thouroughly. Then
open the air supply
again
i and
d continue
ti
with extrusion.
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann | Manual for PET filament extruding
October 12th 2015 | Slide 21
Institut für Werkzeugmaschinen
und Fertigungstechnik
Institut für Werkzeugmaschinen
und Fertigungstechnik
Platzhalter für Bild, Bild auf Titelfolie hinter das Logo einsetzen
Thank you!
Benjamin Neef, Roman Stieben, Nora Jaeschke, Lina Kindermann
October 12th 2015
Institute for Machine Tools and Production Technology

押出丸棒の力学的挙動とその応用