PL1220 Owner’s Manual
78
Q: How often do I need to change the water in the chiller unit and can I leave the water in
the laser tube when not in use?
A: The water should be changed on a monthly (30 days) basis. The water can be left in the tube
so long as there is no danger the water will freeze.
CAUTION
If you operate this laser in freezing temperatures (32°F, 0°C)
there is a high probability the expanded frozen water will
break the laser tube.
Q: Can I use a different Focal Length than the included 50.8 mm focal length?
A: All focal lenses must be 20 mm in diameter to fit the laser tube assembly. The shortest focal
length that can be used is the 50.8 mm, constraint by the laser assembly mounting tube.
A longer focal length can be used by removing the removable bottom of the PL1220 and resting
the machine on riser blocks to accommodate the larger focal spacing needed.
Q: What type of lubricant should I use for the linear bearings?
A: We recommend white lithium (PTFE) grease
Q: Do I need to use a Fume Extractor with a CO2 laser cutting machine?
A: You must vent the machine to a safe location that will not harm yourself as the operator or any
bystanders. This is most easily done with the use of a fume extractor machine. The use of a fume
extractor is beneficial to the safety of the operator and bystanders as it filters the harmful by-
product away.
This does not make it acceptable to use harmful materials as the fumes must still travel through
the venting and parts of the machine that could be irreversible damaged.
To Next Page
