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6
UTILITIES AND EQUIPMENT REQUIREMENTS
6.1 Atmosphere Requirements
6.1.1 Room Ventilation
The printing process takes place under an inert argon atmosphere inside the process chamber. During the preparation, loading,
and unloading, argon gas is released to the workplace. In small rooms, argon volumes exhausted into the room may be
significant. Consider placing local exhaust units, in addition to room ventilation.
The printing process takes place under an inert argon atmosphere inside the process chamber. During the preparation and
loading /unloading, the machine argon gas is released to the workplace. Therefore, in small rooms, a minimum ventilation is
required.
During cleaning of the machine, powder particles/dust may become airborne. The presence of metal powders in the work
area air is unsafe and must be avoided as much as possible. Therefore adequate room ventilation is recommended, as well as
wearing PPE (Personal protective equipment).
A. Air Conditioning
The facility air conditioning system where the printer is operating should be capable of dissipating 1.0 kW (3412 Btu or 0.28 ton
U.S. refrigeration) of heat or equivalent to keep temperature requirements. Ensure that any air conditioning ducting does not
vent directly onto the machine.
B. Room Air Source
The facility HVAC system provides source air only. Air that is introduced into the room is not allowed to recirculate back into
the facility HVAC system. The atmosphere in the DMP Flex 350 installation room must meet the following specifications:
ATMOSPHERIC VARIABLES
Room temperature controls
Temperature
Non-condensing relative humidity
Room air changes
Heat dissipation
Atmospheric corrosives
3D Systems, Inc.
End user must ensure constant temperature in operating room.
Heating and air conditioning may be required.
In case of A/C present, it should not blow on top of process station.
Operating range: (16 to 27) °C; (60 to 80) °F
Setpoint range: (18 to 24) °C; (65 to 75) °F
Stability: ± 2 °C (± 5 °F)
No lower than 20% and no higher than 80%
4 per hour minimum
Maximum: 3.2 kW (11000 BTU/hr)
Average: 2.4 kW ( 8200 BTU/hr)
None; Clean Dry Air (CDA) is required
28
REQUIREMENTS
p/n: 15-D99, rev. C
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