Air Quality And Temperature - 3D Systems ProJet 7000 Facility Requirements Manual

06.1 Air Quality and Temperature

Air Quality
The room housing the ProJet™ 7000 should be well ventilated. Reasonable care should be taken to minimize dust and smoke which could
contaminate the print material and cause deterioration of optical surfaces. Avoid temperature fluctuation (see below). Since dust, smoke and
temperature fluctuations can affect the performance of the machine and the quality of the parts, a restricted area with positive pressure filtered air
flow is recommended. Avoid proximity to machine shop areas, or where milling, grinding, or sanding is performed.
Temperature
The facility air conditioning system should be capable of removing 1.0 kW/h (3414 BTU/hour) of heat dissipated by the ProJet™ 7000.
The temperature in the room or location where the ProJet™ 7000 resides should remain stable to allow optimal system operation and optimal part
quality. The working range is: 20°-26°C (68°-79°F).
Any temperature fluctuations greater than 3°C (5°F) may adversely affect parts built on the system. The rate of temperature change should not
exceed 1°C (1.8°F) per hour. The air conditioning system should maintain a temperature change of less than 1°C per hour. The air should change
two to five times per hour. Avoid exposure of the ProJet™ 7000 to direct air flow from the local air conditioning system to avoid the possibility of
adversely affecting part quality.