To reduce the risk of injury:
● Do not attempt service. All service must be performed only by the Glowforge factory or by
factory-authorized technicians.
● Do not attempt to alter or modify the unit.
● Only use the front door or top lid to open the case. Do not try to open the case any other way,
such as by drilling holes, removing fasteners, or removing coverings.
● Do not try to disassemble or open sealed portions of the Glowforge unit, including any protective
coverings or housings.
● If the crumb tray is removed, use extreme caution to ensure that the laser only strikes
laser-compatible material, and does not touch the metal bottom of the unit which could cause a
reflection and damage the unit.
Glowforge Pro Only: Class 4 Laser Safety & LSO Training
Because the Glowforge Pro has pass-through slots, it is a Class 4 laser device. For safe operation,
a Class 4 laser device should be operated under a laser safety program under the control of a Laser
Safety Officer (LSO). Training for LSOs normally costs more than $1,000, but Glowforge has worked
with leading laser safety training experts to prepare materials so that you can act safely as the LSO for
your Glowforge Pro.
These materials will train you to operate your Glowforge Pro in Class 1 conditions, which do not
require additional special precautions. If you need to operate your Glowforge Pro in Class 4
conditions, these materials will explain what you must do in order to operate it safely. They will also
provide you with an overview of laser physics and safety concerns, and processes to follow.
You must read, understand, and follow the Glowforge Pro Training Materials to use your Glowforge
Pro.
The Glowforge Pro LSO Training materials are emailed to all Glowforge Pro owners as a
password-protected PDF.
Smoke and Fume Safety
When you use your Glowforge, the laser creates visible and invisible aerosols, gases, vapors, and
particulates (referred to here as "smoke and fumes"). The smoke and fumes can include carbon
monoxide and other chemicals which present health hazards, as well as being unpleasant and stinky.
The chemical composition of the smoke and fumes depend on the material being lasered. Smoke and
fumes from laser-compatible materials are controlled by exhaust or filtration.
Copyright Glowforge, Inc. 2019
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