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3 . Heating element
The internal chamber temperature can be controlled . This has the following characteristics:
•
Max . internal chamber temperature: 70 °C
•
Control accuracy: ±10 °C
•
Heating element power rating: 1200 Watts
4 . Vacuum cleaner hose
The printer is equipped with a vacuum cleaner hose that can be operated only if connected to an external powder recycling
system . The vacuum cleaner can be used to clean the manufacturing area . The vacuum cleaner hose connection is located
on the left-hand side of the printer .
5 . Oxygen analyser sensor
The printer is equipped with an oxygen analyzer that monitors the level of oxygen continuously (value is expressed in
percent till 1% and in ppm below) .
6 . Lens cleaner
A filtering unit is fitted on the system to avoid particles and fumes from the sintering process being deposited onto the lens.
A gas flow sweeps permanently the underside of the lens; this airflow is filtered using a filter cartridge. The particles are
stopped by the cartridge membrane and stored in a collector .
Caution : the lens filter must be replaced regularly. Consult the Maintenance section for the
recommended maintenance interval and details on how to replace the filter.
C . Laser assembly
The main optical devices are :
•
A fiber laser source: continuous operation, single mode, power at the collimator output 50W, wavelength in the short-
wave infrared range (approx . 1070 nm),
•
A collimator: outlet beam diameter at 1 / e ² of 5 mm,
•
A beam expander: optical device that expands the laser beam,
•
A scanner head,
•
A flat field F-Theta lens (420mm focus length).
COLLIMATOR + BEAM EXPANDER
1
ENCLOSURE
2
OPTICAL RAIL
3
SCANNER HEAD
LENS (COULD NOT BE SEEN ON THE
4
FIGURE)
3D SYSTEMS, INC.
1
2
26
3
4
PN:80-D48 REV A
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