3D SYSTEMS, INC.
75-D059 REV_A
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3 . Inspect and clean accessible areas within the chamber . Excess powder in the chamber should be vacuumed . The heater
should be wiped down with a soft cloth .
WARNING! Touching the part heater surface can damage the heater. Exercise caution when removing powder
on the surface of the heaters.
4 . Verify that there is sufficient material in both feed beds. Only load enough powder to complete the build. A good rule of
thumb is to first load equal amounts of powder in both feeds (total volume of the two feeds should be more than enough
to complete the build). Refer to the sPro 60 User guide for more information on filling feeds.
5. Verify that the overflow cartridges are not full and/or have enough room for the build.
6. Verify Laser Coolant Flow Setting. The flow setting is located on the coolant panel of the main system behind the outer panel.
The coolant flow should be greater than 6 liters/minute and around 20
°
C.
7. Verify that the IR sensor core temperature is 77
°
C. The temperature is displayed in the Status Window. If the print chamber
doors are open (or any interlocks are not made), the IR core heaters will not be on. After closing and securing the print chamber,
allow extra time for the IR temperature to stabilize before starting a build.
NOTE: If you suspect a problem with the IR sensor core temperature control, contact 3D Systems Field Service.
8 . Verify that the laser window nitrogen flow setting is at 5 liters/minute when not purging.
9 . Verify that the Compressed air is ON .
10 . Verify that the Heater assembly is in the correct position . The tray should be pulled out and should sit straight,
perpendicular, and over the powder bed . Verify that the swing gates are sitting correctly and the sheets can swing .
11 . Verify that the printer is equipped with a textured roller and wipers . DuraForm TPU Elastomer requires both to ensure
the powder feeds correctly across the print bed .
RESTARTING A TERMINATED PRINT
If a print has been terminated, you likely will not be able to successfully restart it . The thermal conditions necessary for
DuraForm TPU Elastomer material generally does not allow for successful restarts of terminated prints .
BUILD REMOVAL
1 . Move the part piston and the feed beds approximately 20 mm (0 .8 inches) below their current positions .
2 . Open the chamber door . Remove the swing gates and move the heater tray back .
NOTE: The part bed surface should be allowed to cool to or below 85°C before opening the doors.
3 . Remove laser window baffle and replace with laser window insert plug. The plug helps prevent airborne powder from
getting inside the laser window seating .
4 . Sweep loose powder from the liner plate onto the part bed .
5 . Place the extraction cylinder into the chamber and close and secure all doors . Ensure the extraction cylinder surrounds
the print bed area . Move the piston to the start position .
6 . Once the piston is at the start position, open the doors and slide the extraction tray underneath the cylinder . The
extraction tray and cylinder can be moved to the Breakout Station (BOS) . DuraForm TPU Elastomer parts will be easier
to remove if the powder is warm . Printed parts will be easier to break out when the part cake is still warm and when the
surface of the print cake is at or above 50°C .
SIFTING MATERIAL
To operate the Breakout Station (BOS), refer to the
3D Systems suggests the following sifting techniques
for DuraForm TPU Elastomer material:
1 . Remove loose material from the print cake with a brush . Sift the loose material into a separate bin, but discard the hard
and chunky material from the final breakout and part cleaning.
2 . Sift the loose material from the print cake between each print . Loose material will be easier to sift out when the part cake
is still warm .
NOTE: When collecting material from the print cake, use only the soft powder. Powder that is hard and cannot
break down easily by hand should be discarded.
3 . DuraForm TPU Elastomer part cake powder and overflow powder should be sieved through a 70 Tensile Bolt Cloth
screen .
