3D Systems, Inc.
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The material of the print chamber window also blocks laser radiation so you can safely observe the part bed during a print .
Other Active Safety Features
•
The ProX MQC System, coupled with the
Dust Collector
, removes airborne material during part breakout in accordance with
standard industrial ventilation practices .
•
An optional room oxygen monitor automatically initiates SLS system shutdown when it detects too little oxygen in the room .
ELECTRICAL SAFETY
To prevent electrical shock, SLS equipment will not operate unless all external panels are installed and all electrical safety interlock
circuits are closed .
ELECTRICAL HAZARD: Hazardous voltage exists inside the enclosures of all SLS equipment . Injury or death from
electrical shock can result if you remove external panels or try to defeat safety interlocks . Panels should only be
removed, and interlocks should only be defeated, by trained and certified 3D Systems Customer Support personnel.
ELECTRICAL HAZARD: Verify your facility’s electrical service ratings before connecting power to any SLS equipment .
Power must only be connected by a certified electrician.
ELECTRICAL HAZARD: Do not open the panel behind disconnect switch! Live voltage present . This should only be
opened by qualified personnel after power is disconnected from the facility’s power circuit/breaker panel.
All SLS equipment was designed to minimize operator exposure to electrical hazards during normal operations . All exposed electrical
circuits are inside limited-access cabinets . This is to separate the operator from service and maintenance areas .
When operating any SLS equipment, keep the following electrical safety points in mind:
•
Only 3D Systems certified service personnel should operate SLS equipment with access panels or service doors open.
•
Heed high voltage warning signs and labels .
ENVIRONMENTAL ISSUES
The SLS system emits no toxic substances when using materials approved by 3D Systems .
Emissions
Material heating
– Analytical testing on 3D Systems materials indicates no detectable emissions outside acceptable limits from the
SLS system . (See the materials’ SDS .)
Nitrogen
– The SLS system uses nitrogen, which is passively vented in the print chamber .
NOTE: Do not install a fan in the exhaust port . The exhaust port (see the section
“Cleaning the Exhaust Port” on page
62
)
in the print chamber must not be blocked . The nitrogen-inert atmosphere in the SLS system print chamber is at
higher pressure than the outside atmosphere . The chamber will vent without a fan . Installing a fan in the exhaust port
will draw nitrogen-rich air out of the print chamber too fast, raising the oxygen concentration in the chamber . This
can keep the SLS system from reaching inert status, or cause an in-process print to abort .
Material Disposal
Refer to the DuraForm ProX material SDS for disposal information . Follow any applicable local regulations .