formlabs Fuse 1 User manual

Manual Fuse 1

Installation and Usage Instructions
Fuse 1
Benchtop Selective Laser Sintering (SLS)
3D printer
Original English instructions
Read this manual carefully and keep it for future reference.
January 2021
REV 01
© Formlabs

1 Table of Contents
1Preface ..................................................................6
1.1 Read and retain instructions ................................................6
1.2 Obtaining documentation and information ...................................6
2Introduction ..............................................................8
2.1 Intended use..............................................................8
2.2 Technical specifications ....................................................8
2.3 Product components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.4 Fuse 1 user interface ......................................................13
3Safety...................................................................14
3.1 Component and subsystem safety .........................................15
3.2 Personal protective equipment (PPE) .......................................18
3.3 Specification of tools to be used ...........................................18
3.4 Sensitive components ....................................................19
3.5 Emergency and exceptional situations ......................................19
4Preparation and setup....................................................21
4.1 Location and environs ....................................................21
4.2 Power and networking ................................................... 22
4.3 Unboxing the machine ................................................... 22
4.4 Accessing the serial name. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.5 Installing the machine.................................................... 24
4.6 Setting up a network connection .......................................... 25
4.7 Updating firmware....................................................... 26
4.8 Registering powder credit ................................................ 26
4.9 Preparing the optical cleaning kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.10 Transporting the machine ................................................ 29
5Printing ................................................................ 32
5.1 Operational environment................................................. 32
5.2 Designing for SLS ....................................................... 32
5.3 Setting up a print .........................................................33
5.4 Preparing for a print ......................................................34
5.5 Retrieving and cleaning prints with the Fuse Sift .............................37
5.6 Managing the machine................................................... 38

6Maintenance ........................................................... 39
6.1 Tools and supplies....................................................... 39
6.2 Inspection and maintenance.............................................. 40
6.3 Tasks between uses ..................................................... 40
6.4 Periodic maintenance.....................................................43
6.5 Intermittent maintenance ................................................. 48
7Troubleshooting .........................................................51
7.1 Collecting diagnostic logs .................................................51
7.2 Performing a factory reset .................................................51
7.3 Cleaning after a failed print ................................................51
7.4 Troubleshooting errors or abnormal activity ................................ 52
8Disassembly and repair.................................................. 54
8.1 Tasks................................................................... 54
9Recycling and disposal ..................................................55
9.1 Disposal of powder ...................................................... 55
9.2 Recycling of powder ..................................................... 55
9.3 Disposal of cleaning agents .............................................. 55
9.4 Recycling of solvent ..................................................... 55
9.5 Disposal of electronic components........................................ 56
9.6 Disposal of packaging waste ............................................. 56
10 Index................................................................... 57
11 Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
12 Product compliance ......................................................61

Disclaimer | 5
Read and understand this manual and its safety instructions before using the Fuse 1.
Failure to do so can result in serious injury or death.
DISCLAIMER
Formlabs has made every eort to make these instructions as clear, complete, and correct
as possible. The information provided in this documentation contains general descriptions
and/or technical characteristics of the performance of the products contained herein. This
documentation is not intended as a substitute for and is not to be used for determining
suitability or reliability of these products for specific user applications. It is the duty of any
such user or integrator to perform the appropriate and complete risk analysis, evaluation, and
testing of the products with respect to the relevant specific application or use thereof. Neither
Formlabs nor any of its aliates or subsidiaries shall be responsible or liable for misuse of the
information that is contained herein. Notify us if you have any suggestions for improvements
or amendments or have found errors in this publication.
Copyright © 2020 by Formlabs. All rights reserved.
support.formlabs.com
TRADEMARKS
All product names, logos, and brands are property of their respective owners. All company,
product, and service names used in this manual are for identification purposes only. Use of
these names, logos, or brands does not imply endorsement.
DOCUMENT REVISIONS
Date Version Document changes
Jan 2021 REV 01 Initial publication
WARNING

6
1 Preface
Congratulations on purchasing the Fuse 1. On behalf of the Formlabs team, we thank you for
your purchase. The Fuse 1 is a Selective Laser Sintering (SLS) 3D printer.
The Fuse 1 fabricates fully-supported parts by heating powdered thermoplastic to just below
its melting point, then solidifies it by sintering layers (2D cross sections) together with a laser.
These 110 micron thick layers are stacked on top of each other to create 3D parts.
This manual explains how to set up, use, and properly maintain the Fuse 1, as well as provides
design guidance for optimizing print results.
The manual is intended for anyone who is installing, operating, maintaining, or otherwise
interacting with the Fuse 1. Supervise young or inexperienced users to ensure enjoyable and
safe operation.
1.1 Read and retain instructions
Read and understand this manual and its safety instructions before using the Fuse 1. Failure
to do so can result in serious injury or death. Keep all safety information and instructions for
future reference and provide them to subsequent users of the product.Follow all instructions to
avoid fire, explosions, electric shocks, or other hazards that may result in damage to property
and/or severe or fatal injuries. The Fuse 1 shall only be used by persons who have fully read
and understand the contents of this manual. Ensure that each person who uses the Fuse 1
has read these warnings and instructions and follows them. Formlabs is not liable for cases of
material damage or personal injury caused by incorrect handling or non-compliance with the
safety instructions. In such cases, the warranty will be voided.
1.2 Obtaining documentation and information
Visit formlabs.com to:
• Access your Formlabs store (formlabs.com/store) and Dashboard accounts (formlabs.
com/dashboard).
• Find certified service providers in your region (formlabs.com/company/partners).
•
Access the Terms of Service (formlabs.com/terms-of-service) and the Privacy Policy
(formlabs.com/privacy-policy).
Visit support.formlabs.com to:
• Access the latest version of all Formlabs product documentation.
•
Contact Formlabs Support to request documentation, manuals, repair guides, and
technical information.
• Submit any comments or feedback regarding what is good and what can be improved.
Formlabs values comments from its users.
• Request additional training.
1.2.1 Support and service
Retain a record of the original purchase to request warranty services. Service options depend
on the status of the specific product’s warranty. Include the serial name of the product when
contacting Formlabs Support or a certified service provider for product support.Instead of a
serial number, Formlabs products have a serial name, which is a unique identifier to track the
history of manufacturing, sales, and repair, and to distinguish usage when connected to a

Preface | 7
network. The serial name is on the back panel of the machine in the format AdjectiveAnimal.
Service providers of Formlabs products also provide support and service. To the extent that
Formlabs or a certified service provider oers other or extended warranties, the terms of the
separate oer may apply.
For products purchased from certified service providers, contact the original service provider
for assistance before contacting Formlabs Support.
For any support or service requests, including product information, technical assistance, or
assistance with instructions, contact Formlabs Support:
support.formlabs.com USA
Formlabs, Inc.
35 Medford St.
Somerville, MA, USA, 02143
Germany
Formlabs GmbH
Nalepastrasse 18
12459 Berlin, Germany
1.2.2 Warranty
This product is protected under warranty. Formlabs oers a warranty for all Formlabs branded
hardware. Unless otherwise expressly stated, the Terms of Service, including the Warranty,
constitute the entire agreement between you and Formlabs with respect to the Service and
any product you purchase from Formlabs and supersedes all prior or contemporaneous
communications, proposals, and agreements, whether electronic, oral, or written, between
you and Formlabs.
Read the warranty for more details on the Formlabs warranty for your region:
US formlabs.com/support/terms-of-service
EU (EN) formlabs.com/eu/terms-of-service
EU (DE) formlabs.com/de/support/terms-of-service/eu
EU (FR) formlabs.com/fr/support/terms-of-service/eu
EU (ES) formlabs.com/es/terms-of-service/eu
EU (IT) formlabs.com/it/terms-of-service/eu

8
2 Introduction
2.1 Intended use
The Fuse 1 is a commercial, precision tool intended for use in the additive manufacture of
end-user supplied designs from SLS powder. The final performance characteristics of sintered
SLS powder may vary according to your compliance with the instructions for use, application,
operating conditions, material combined with, end use, or other factors.
In some cases, the additive manufacturing process may inherently result in variable
performance characteristics between manufacturing runs or within a specific part.
Such variances may not be apparent and may result in unexpected defects in
additively fabricated parts.
You shall independently verify the suitability of additive manufacturing, Selective
Laser Sintering (SLS), the Fuse 1, and any specific designs or materials employed
for the application and intended purpose before use. In no event shall Formlabs be
liable for any loss, death, or bodily injury that you suer, or that you cause to any third
party, in connection with your use of Formlabs products. To the fullest extent legally
permitted Formlabs EXPRESSLY DISCLAIMS ANY IMPLIED OR EXPLICIT WARRANTY
OF FITNESS for a particular usage, the particular nature and circumstances of said
usage being unforeseen and unforeseeable to Formlabs.
Formlabs is not a manufacturer of medical devices. Formlabs provides tools and
materials that may be used in many applications, but makes no claims as to the
safety or eectiveness of any specific devices made using Formlabs products.
Certain Formlabs products, such as those commonly known in the industry as
“biocompatible” materials, have been engineered to comply with relevant industry
standards. The specific standards and most relevant technical specifications may be
identified within the technical data sheets and have been tested according to relevant
testing protocols for those standards and specifications. Biocompatible materials are
a speciality product, developed for use by medical professionals, and should be used
in accordance with the instructions for use.
Do not modify. The Fuse 1 is intended for use as-is. Modifying the machine without
explicit approval and directions from Formlabs or a certified service provider will void
your warranty, and could potentially ruin the machine and cause you bodily harm.
2.2 Technical specifications
Parameter Unit
Printer Fuse 1
NOTICE
WARNING
WARNING
WARNING

Introduction | 9
Parameter Unit
3D printing technology Selective Laser Sintering (SLS)
Minimum dimensions for convenient
access (W × D × H)
125.5 × 149.5 × 187.0 cm | 49.4 × 59.0 × 73.6 in
Printer dimensions (W × D × H) 64.5 × 68.5 × 107 cm (165.5 cm with stand)
25.4 × 27.0 × 42.0 in (65.0 in with stand)
Printer weight 114 kg (without build chamber or powder)
251.3 lb (without build chamber or powder)
Build chamber dimensions (W × D × H) 27.9 × 34.2 × 48.9 cm | 11.0 × 13.5 × 19.3 in
Build chamber weight 11 kg (17.6 kg, full with 20% packed powder)
24.3 lb (38.8 lb, full with 20% packed powder)
Build volume (W × D × H) 16.5 × 16.5 × 30.0 cm | 6.5 × 6.5 × 11.8 in
Material refresh rate Print with up to 70% recycled powder
Startup time 60 minutes
Build speed 10 mm/hour | 0.39 in/hour
Hopper capacity 9 kg powder | 19.8 lb powder
Operating environment 20–27 ºC | 68–81 ºF
Operating temperature 200 ºC | 392 ºF
Temperature control Quartz tube heating elements
Positive temperature coecient (PTC) cartridges
Air handling Pressure-controlled two-stage filtration (Replaceable HEPA
and carbon mediums)
Power requirements EU: 230 VAC, 7.5 A (dedicated circuit)
US: 120 VAC, 15 A (dedicated circuit)
Laser specifications EN 60825-1: 2014
Class 1 laser product
1065 nm
Maximum 10 W
4.01 mrad beam divergence (nominal, full angle)
Laser spot size (FWHM) 200 μm | 0.0079 in
Radiation information The Fuse 1 is a Class 1 laser product. Accessible radiation is
within Class 1 limits.
Connectivity Wi-Fi: 2.4 GHz
Ethernet: 1000 Mbit
USB: 2.0
Wi-Fi connectivity Protocol: IEEE 802.11 b/g/n
Frequency: 2.4 GHz
Supported security: WPA/WPA2
Ethernet connectivity RJ-45 Ethernet (10BASE-T/100BASE-TX/1000BASE-T) LAN port
Connect with a shielded Ethernet cable (not included):
minimum Cat5, or Cat5e or Cat6 for 1000BASE-T.
USB connectivity USB (rev 2.0) B port with a USB A-B cable
Printer control Interactive touchscreen
Powder dispensing system Automated
Alerts Touchscreen alerts, SMS/email via Dashboard
Print preparation PreForm desktop software
File type STL or OBJ

10
2.3 Product components
2.3.1 Fuse 1
Print enclosure door: Provides access to the print enclosure and optical cassette tray.
IR sensor door: Provides top-down access to the IR sensor and powder card reader.
Touchscreen: The LCD capacitive touch user interface displays print information, settings,
and error messages.
Hopper lid: Prevents debris from entering and powder from leaving the hopper.
Hopper: Stores up to 9 kg (19.8 lb) of powder for printing.
Hopper window: Allows for visual check of powder level in the hopper.
Door handle: A grab slot to help close the door.
Cassette tray: Holds the optical cassette in place.
Build chamber latch: Secures a build chamber.
Print enclosure: Houses the build chamber and optics system for printing.
Build chamber socket: Connects the build chamber’s plug.
Filter cabinet door: Sealed door for accessing the intake and exhaust filters.
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Introduction | 11
2.3.2 Build chamber
Print bed: The moving surface (Z-axis) on which
powder is deposited and sintered.
Front handle: Silicone handle for loading and
unloading the build chamber.
Side handles: Silicone handles on each side for
moving the build chamber.
Plug holster: A retainer to keep the plug secure
when moving or storing the build chamber.
Build chamber plug: Main connector for the build
chamber’s heaters and temperature sensors.
2.3.3 Powder cartridge
Cartridge wings: Two brackets for locking the
cartridge to the mixer.
Cartridge valve: The primary opening for filling and
depositing powder.
Valve knife: Used to close and open the cartridge valve.
Handles: For holding and lifting the cartridge.
2.3.4 IR sensor
Sensor window: The exposed surface that allows
infrared radiation to enter the sensor.
Ethernet socket: Used to connect the sensor to the
printer and disconnect for cleaning.
Status light: Indicates if the sensor is seated
correctly (green) or incorrectly (yellow).
2.3.5 Optical cassette
Laser window gasket: Seals the top of the laser
window from the print enclosure.
Camera window gasket: Seals the camera window
from the print enclosure.
Tray catch: Two hooks that align the optical cassette
to the cassette tray.
Laser window: Protects the laser during printing.
This side requires cleaning after each print.
Camera window: Protects the camera lens during
printing. This side requires cleaning after each print.
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2.3.6 Additional Fuse 1 package components
Power cable: Compatible with both the Fuse 1 and the Fuse Sift.
Stand: Freestanding platform for the Fuse 1.
Optical cassette: A set of gasketed windows that protect the laser and camera. Each Fuse
1 includes an optical cassette packaged with the printer.
Build chamber: The compartment in which powder is deposited and sintered into parts.
Thermal-insulated silicone gloves: For removing the build chamber while it’s still hot.
Push-top dispensers: For dispensing Alconox, deionized water, and ethanol to clean the
optical cassette.
Polyester swabs: For cleaning the upper laser window, the IR sensor and the IR
sensor housing.
PEC*PADs: For cleaning the cassette’s optical windows.
Telescoping mirror: For inspecting the upper laser window and roof of the print enclosure.
Lifting straps: For two individuals to lift and move the Fuse 1.
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Introduction | 13
2.4 Fuse 1 user interface
For detailed guidance and visual assistance, visit support.formlabs.com.
The touchscreen displays print information (print job name, time remaining, layers printed),
settings, and error messages. The touchscreen serves as the user interface for the printer.
Tap the home icon in the left sidebar to
access the Home screen. A status card on
the right indicates if the Fuse 1 is idle, printing,
or cooling. Below the status card is the Next
Job card, which presents the next print job
in the queue. The slider to unlock the print
enclosure is located in the bottom-right corner
of the touchscreen.
Tap the printer icon in the left sidebar to access
the printer status screen. Readouts of the bed
temperature, hopper level, powder type, and
available credits can be found here.
The Fuse 1 requires periodic maintenance and
notifies users when a procedure is due. Each
procedure is accompanied by written and
visual instructions and organized in a checklist
with due tasks highlighted red. When a task is
completed, the Fuse 1 keeps track of procedure
intervals in the background.

14
3 Safety
Read and understand this manual and its safety instructions before using the Fuse 1.
Failure to do so can result in serious injury or death.
Supervise young or inexperienced users to ensure enjoyable and safe operation.
The instructions contain warnings and safety information, as explained below:
DANGER indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury.
WARNING indicates a hazard with a medium level of risk which, if not avoided, could result in death or
serious injury.
CAUTION indicates a hazard with a low level of risk which, if not avoided, could result in minor or
moderate injury.
NOTICE indicates information considered important, but not hazard-related.
DANGER: Ethanol is a flammable chemical.
DANGER: CLASS 4 INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED AVOID
EYE OR SKIN EXPOSURE TO DIRECT OR SCATTERED RADIATION
WARNING: Class 1 laser product. Only remove the exterior paneling of the printer with authorization
from Formlabs Support or a certified service provider.
ENVIRONMENTAL HAZARD: Unsintered SLS powder is classified as a microplastic, a group of
plastics that are hazardous to aquatic life..
MANDATORY ACTION: Refer to instruction manual/booklet.
MANDATORY ACTION: Wear a respirator (N95 or better).
MANDATORY ACTION: Wear thermal-insulating silicone gloves when handling hot build chambers.
MANDATORY ACTION: Disconnect before carrying out maintenance or repair.
MANDATORY ACTION: Grounding required.
WARNING
DANGER
WARNING
CAUTION
NOTICE

Safety | 15
3.1 Component and subsystem safety
3.1.1 General
The Fuse 1 requires a 230 VAC (50 Hz), 7.5 A power supply (EU) or 120 VAC (60
Hz), 15 A power supply (US) for nominal operation. Unless explicitly instructed by
Formlabs Support or a certified service provider, do not disassemble or tamper with
the product beyond what is explicitly outlined for typical maintenance. Tampering
with, or disassembling the Fuse 1 prior to disconnecting the power cable and waiting
approximately ten minutes can subject users to potentially fatal electrical hazards.
The Fuse 1’s print enclosure is designed to operate at up to 200 °C (392 °F) and
incorporates high-intensity heaters. Do not open the print enclosure or any other
access doors on the printer during or immediately after a print. Do not handle parts
from a build chamber without allowing the entire print enclosure to cool for several
hours, or until the print bed temperature has reached ≤ 45 ºC (113 °F). Use the
provided thermal-insulating silicone gloves when removing a build chamber that
has not been allowed to cool down. Failure to follow these procedures will result in
serious injuries, including burning and/or scalding of skin.
Due to its size and weight, do not move or reposition the Fuse 1 alone. If the machine
needs to be moved, at least two or more individuals should use the lifting straps
provided with the printer.
Do not lift or reposition the Fuse 1:
• By grabbing or pulling on the print enclosure door, hopper, hopper lid, filter
compartment, filter door, power cable, or any components inside the print
enclosure.
• By pushing on any side of the unit while stationary.
• When the build chamber from a previous print is loaded or still cooling in the print
enclosure.
• When the print enclosure is still hot from a previous print.
The Fuse 1 requires an operating environment that is low in ambient humidity and
static electricity. Due to the sensitive nature of its components and the printing
mediums, system reliability and print quality may fluctuate if the ambient temperature
and moisture are outside the recommended ranges. Refer to section 4.1 Location and
environs for the recommended operating environs. When performing maintenance or
testing with the exterior paneling of the machine removed, ground equipment to the
grounding stud marked with this protective earth symbol.
DANGER
WARNING
CAUTION
NOTICE
NOTICE

16
3.1.2 Laser
The above Class 4 laser warning label is also located in the Fuse 1. It can be seen on the laser module
heatsink. It is visible when the rear cover of the printer is opened by an authorized technician.
Class 1 laser product. The laser beam is extremely harmful to the eyes and skin,
capable of causing permanent blindness. Avoid direct contact at all times. The Fuse
1 contains redundant interlock systems to automatically shut o the laser when the
print enclosure door is open, or if the IR sensor is out of place. If these systems are
tampered with or fail, there is a risk of exposure to Class 4 laser light. Use of controls
or adjustments or performance of procedures other than those specified herein may
result in hazardous radiation exposure. Only remove the exterior paneling of the
machine with authorization from Formlabs Support or a certified service provider.
Accessible radiation is within Class 1 limits. The laser diode used inside the device has the
following specifications:
Parameter Unit
Diode 1065 nm
Maximum output 10 W
Beam divergence 4.01 mrad (nominal, full angle)
Certification ISO 11553-1:2020
ISO 11252:2013
ISO 11554:2017
3.1.3 Powder
Dust deposits should not be allowed to accumulate on surfaces. Clean dust residues at regular
intervals. Do not use brooms or compressed air hoses to clean surfaces. Only use a compliant
vacuum that is grounded and bonded, such as a Class II, Division 2 vacuum, for dust collection.
Use only non-sparking tools. Keep powder containers tightly closed when not in use.
Use appropriate personal protective equipment when handling loose or unsintered powder.
Wear non-reactive nitrile gloves and safety glasses. Wear a respirator (N95 or better) if the
occupational threshold limit value for airborne particle concentration has been exceeded, if
you are sensitive to dust or pollen, or you are concerned about your respiratory health. Refer to
section 3.2 Personal protective equipment (PPE) for more information. Handle loose powder
only with adequate ventilation. Avoid breathing mist/vapor/spray/dust. Do not eat, drink, smoke,
or use personal products when handling powder. Avoid contact with skin, eyes, and clothing.
DANGER
WARNING

Safety | 17
In case of powder inhalation, swallowing, or contact with eyes, follow these
instructions:
• AFTER INHALATION: If inhaled, remove person to fresh air and place in a position
comfortable for breathing. Keep person at rest. If breathing is dicult, administer
oxygen. If breathing has stopped, provide artificial respiration. If symptoms develop
or persist, seek medical advice/attention.
• AFTER SKIN CONTACT: Remove contaminated clothing and shoes. Rinse
skin with copious amounts of water [shower] for several minutes. Launder
contaminated clothing before reuse. If symptoms develop or persist, seek
medical advice/attention.
• AFTER SWALLOWING: If swallowed, DO NOT induce vomiting unless told to do
so by a physician or poison control center. Rinse mouth with water. Never give
anything by mouth to an unconscious person. If spontaneous vomiting occurs,
place on the left side with head down to prevent aspiration of liquid into the lungs.
If symptoms develop or persist, seek medical advice/attention.
Consult the safety data sheet (SDS) as the primary source of information to
understand safety and handling of Formlabs powders. Respect Formlabs powder
like any household chemical. Follow standard chemical safety procedures and
Formlabs powder handling instructions. In general, Formlabs powder is not
approved for use with food, drink, or medical applications on the human body. Refer
to the safety data sheet (SDS) for each specific powder as well as support.formlabs.
com for more detail.
3.1.4 Radio interference
Note: This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated
in a commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference, in which case the
user will be required to correct the interference at their own expense.
Changes or modifications to this product not authorized by Formlabs could void the
electromagnetic compatibility (EMC) and wireless compliance and negate your authority to
operate the product.
This product has demonstrated EMC compliance under conditions that included the use
of compliant peripheral devices and shielded cables between system components. It is
important that you use compliant peripheral devices and shielded cables between system
components to reduce the possibility of causing interference to radios, televisions, and other
electronic devices.
WARNING
NOTICE

18
3.1.5 Ethanol
Ethanol is a flammable chemical. Keep away from ignition sources, including open
flames, sparks or concentrated sources of heat.
Formlabs does not manufacture ethanol. Consult the chemical manufacturer or
supplier for detailed safety information. Carefully follow the safety instructions
provided with the ethanol that you purchase. Ethanol can be flammable, even
explosive, and should be kept away from heat, fire, or sparks. Any containers
holding ethanol should be kept closed or covered when not in use. We also
recommend that you wear protective gloves and have good ventilation when
working with ethanol.
3.2 Personal protective equipment (PPE)
Safe operation of the Fuse 1 can be achieved by implementing the following equipment:
• Particulate filtering respiratory protection (N95 or better)
Wear a respirator (N95 or better) if the occupational threshold limit value for airborne
particle concentration has been exceeded, if you are sensitive to dust or pollen, or you
are concerned about your respiratory health.
• Non-reactive nitrile gloves
Recommended when handling loose or unsintered powder, as it may draw moisture and
oils out of skin. If powder is handled at room temperature, it is not necessary to wear
protective gloves.
• Safety glasses
Required when performing maintenance on the Fuse 1, as well as handling loose or
unsintered powder at any time. Polycarbonate-based lenses, including prescription glasses,
are acceptable so long as they provide peripheral protection.
3.3 Specification of tools to be used
The Fuse 1 shall only be used with supplied accessories and additional tools recommended
by Formlabs or a certified service provider. Third-party accessories and materials may cause
damage. Refer to sections 3.2 Personal protective equipment (PPE) and 6.1 Tools and
supplies for more information.
Purchase additional supplies:
• Alconox
The recommended cleaning agent for removing deposits of laurolactam and other o-
gassing stains from the printer’s optical components. It is the first cleaning agent to be used,
followed promptly by distilled water and ethanol.
• Compliant vacuum that is grounded and bonded (e.g., Class II, Division 2 vacuum)
Certified for use with materials whose fine particles present an explosive risk when in the
vicinity of potentially malfunctioning electrical equipment.
NOTICE