2.3 Laser Safety Instructions
When used as instructed, this machine comprises a Class 1 laser system safe for users and bystanders. However the
invisible engraving laser, the laser tube, and its electrical connections remain EXTREMELY dangerous. Used or modified
without care, they can cause serious property damage and personal injury including but not limited to the following:
• The laser will easily burn nearby combustible materials
• Some working materials may produce radiation or harmful gases during processing
• Direct exposure to the laser will cause bodily harm including serious burns and irreparable
eye damage
As such,
• DO NOT modify or disable this device's provided safety features. Do not modify or disassemble the laser and
do not use the laser if it has been modified or disassembled by anyone except trained and skilled professionals.
Dangerous radiation exposure and other injury may result from the use of adjusted, modified, or otherwise
incompatible equipment.
• Never interfere with the laser beam, do not place any part of your body in any part of the laser path during
operation, and never attempt to view the laser directly. When risking exposure to the laser beam, take mea-
sures to protect yourself from potentially reflected laser beams including the use of personal protective
equipment such as protective eyewear specially designed to filter the specific wavelength of your engraver's
laser with an optical density (OD) of 5+.
• DO NOT stare or allow others to stare continuously at the laser beam during operation even when the cover
is closed and/or wearing protective eyewear. Exercise caution with the red dot positioning light as well, as its
direct beam is a Class 1 laser in its own right.
• ONLY use this engraver if its automatic shutoffs are working properly. When you first get this engraver and
if you subsequently notice any problems, test them (see below) before undertaking any other work. Do not
continue use if the shutoffs do not occur. Turn off the device and contact customer service or your repair
service. Never disable these shutoffs.
• DO NOT ever under ANY circumstances use this laser engraver if the water cooling system is not working
properly. Always activate the water cooling system and visually confirm that water is flowing through the
entire system before turning on the laser tube. If using the provided water pump, ensure that it is placed in a
tank full of cool or tepid distilled water. Do not use ice water or water that has become hotter than 38°C
(100°F). For best results, keep it between 15–21°C (60–70°F). Replace heated water or add sealed bottles of
frozen water to cool it, while never allowing the system to run without water or allowing the water to become
colder than 10°C (50°F). Immediately stop use if the water cooling system malfunctions.
• DO NOT use generic coolant or antifreeze in your cooling water, as they may leave corrosive residues and
solidify inside your hoses and piping, causing malfunctions and even explosions. Use custom laser-safe
formulations or use and store your engraver in a climate-controlled area.
• DO NOT leave potentially combustible, flammable, explosive, or corrosive materials nearby where they
could be exposed to the direct or reflected laser beam.
• DO NOT use or leave sensitive EMI equipment nearby. Ensure the area around the laser is free of strong
electromagnetic interference during any use.
• ONLY use this machine for working the materials described in th e Material Safety section of this manual.
The laser settings and engraving process must be properly adjusted for specific materials.
• Ensure the area is kept free of other airborne pollutants, as these might pose a similar risk of reflection,
combustion, etc.
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