3D Systems SLA 750 Series User manual

User Guide
Release Date: 6/6/2023
Original Instructions

TABLE OF CONTENTS
1 SLA 750 SERIES INTRODUCTION ..................................................................................................... 1
2 SLA 750 SERIES SAFETY .....................................................................................................................2
2.1 General Safety ................................................................................................................................................................................2
2.2 Laser Safety .................................................................................................................................................................................... 3
2.3 Label Installation Diagram ........................................................................................................................................................... 6
2.4 Chemical Safety ........................................................................................................................................................................... 10
3 SLA 750 SERIES ENVIRONMENTAL CONDITIONS ........................................................................ 14
4 SLA 750 SERIES HARDWARE OVERVIEW ....................................................................................... 15
4.1 Production Printer .......................................................................................................................................................................15
4.1.1 Printer - Outside View ....................................................................................................................................................... 15
4.1.2 Printer - Inside View .......................................................................................................................................................... 17
4.1.3 LED Indicators .................................................................................................................................................................... 18
4.2 SLA Vat .......................................................................................................................................................................................... 18
4.3 Light Stack .................................................................................................................................................................................... 20
4.4 Transfer Cart ................................................................................................................................................................................ 21
5 SLA 750 SERIES SPECIFICATIONS AND REQUIREMENTS ............................................................ 23
6 SLA 750 SERIES USER INTERFACE OVERVIEW .............................................................................. 24
6.1 SLA 750 Series Using the Transfer cart .....................................................................................................................................24
6.2 Status ............................................................................................................................................................................................ 25
6.3 Queue ........................................................................................................................................................................................... 26
6.4 Settings ......................................................................................................................................................................................... 29
6.4.1 General ................................................................................................................................................................................31
6.4.2 Network .............................................................................................................................................................................. 32
6.4.3 Users ................................................................................................................................................................................... 33
6.4.4 Printer Info ......................................................................................................................................................................... 35
6.4.5 Usage Log ...........................................................................................................................................................................37
6.5 Elevator and Recoater .................................................................................................................................................................38
6.5.1 Setting the print platform start position ........................................................................................................................ 40
6.5.2 Setting platform drain position ....................................................................................................................................... 42
6.5.3 Setting platform ooad position .................................................................................................................................... 43
6.6 Laser ..............................................................................................................................................................................................45
6.7 Material .........................................................................................................................................................................................48
6.7.1 Leveling the Material .........................................................................................................................................................49
6.7.2 Removing bubbles .............................................................................................................................................................52
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7 SLA 750 SERIES STARTING A BUILD .............................................................................................. 54
7.1 Turn Printer On ............................................................................................................................................................................54
7.2 Connect the Printer to the Internet .......................................................................................................................................... 54
7.3 Installing 3D Sprint ......................................................................................................................................................................57
7.4 3D Sprint .......................................................................................................................................................................................57
7.5 Installing the print platform ...................................................................................................................................................... 61
7.6 Adding material cartridge .......................................................................................................................................................... 64
7.7 Select Job ...................................................................................................................................................................................... 68
7.8 Editing a print .............................................................................................................................................................................. 68
7.8.1 Editing Recoating Style Settings ...................................................................................................................................... 68
7.9 Setting up a delayed start .......................................................................................................................................................... 69
8 SLA 750 SERIES USING THE TRANSFER CART ...............................................................................70
9 SLA 750 SERIES PROCEDURES ....................................................................................................... 72
9.1 Recoater Installation and Removal ........................................................................................................................................... 72
9.2 Calibrating the recoating blade ................................................................................................................................................. 74
9.3 Material Vat Removal .................................................................................................................................................................. 78
9.4 Vat Swap ....................................................................................................................................................................................... 82
9.5 Material Vat Installation ............................................................................................................................................................. 84
9.6 Check Material Temperature ..................................................................................................................................................... 85
9.7 Optional Resin Mixer ...................................................................................................................................................................85
10 SLA 750 SERIES SYSTEM REQUIREMENTS AND SETUP ............................................................... 86
10.1 Remote Access ...........................................................................................................................................................................86
10.2 3D Connect .................................................................................................................................................................................86
11 SLA 750 SERIES PREVENTATIVE MAINTENANCE .......................................................................... 87
11.1 Recoating blade .........................................................................................................................................................................87
11.1.1 Cleaning ............................................................................................................................................................................87
11.1.2 Resin Blade vacuum Level Adjustment .........................................................................................................................87
11.2 Required Power Cycling ............................................................................................................................................................88
12 SLA 750 SERIES PRINTER SHUTDOWN ..........................................................................................89
13 SLA 750 SERIES TROUBLESHOOTING ........................................................................................... 91
14 SLA 750 SERIES OPENING A PRINTER OR MATERIAL SUPPORT CASE .......................................92
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15 SLA 750 SERIES SERVICE AND SUPPORT ...................................................................................... 93
16 SLA 750 SERIES EC DECLARATION OF CONFORMITY ..................................................................94
17 SLA 750 SERIES LEGAL NOTICES ....................................................................................................96
3D Systems, Inc. iii p/n 40-D150, Rev. C

1 SLA 750 SERIES INTRODUCTION
The SLA 750 Series printer is a manufacturing-ready SLA
solution from 3D Systems, the market leader and inventor of
SLA technology!
With a small machine footprint and a large build volume,
makes the SLA 750 your single solution for all product-
development stages: rapid prototypes, functional parts for
testing, manufacturing aids, and production-grade end-use
parts!
3D Systems' new Hyper-Scan™ vector technology, is a scan
algorithm that optimizes laser focus, laser power, and vector-
motor kinematics, that makes the SLA 750 30% faster than
current SLA printers.
The SLA 750 has the best combination of build size, speed,
accuracy, resolution, part nish, and supports materials with
industry leading mechanical performance that helps ensure:
• Your print is successful the rst time.
• Your printer performance is superior to both FDM and
powder-binding print technology.
• Your material waste and hidden consumable costs are kept
low.
SLA 750
SLA 750 Dual
3D Systems, Inc. 1 p/n 40-D150, Rev. C

2 SLA 750 SERIES SAFETY
2.1 General Safety
HAZARD MESSAGES
The following symbols are used throughout this manual. Some also appear on the printer itself.
UV Radiation Hazard: Invisible UV radiation is accessible in the vicinity of this sign or behind the panel. Radiation can
cause eye injury. Access panels are for service only and should be opened only by certied service personnel.
Electrical Shock Hazard: High voltage electricity is accessible in the vicinity of this sign or behind the access panel.
High voltage can cause severe burns or death. Access panels are for service only and should be opened only by
certied service personnel or trained maintenance personnel.
Hot Surface Hazard: A hot surface is accessible in the vicinity of this sign or behind the access panel. Avoid contact.
Hot surfaces can cause severe burns. Access panels are for service only and should be opened only by certied
service personnel or trained maintenance personnel.
Harmful Irritant Warning: Indicates that skin or eye irritation could result while exposed to a chemical composition.
Wear Gloves: Gloves must be worn when handling uncured build material or any machine parts that may have
material on them.
Ultraviolet Radiation Inside: Exposure may cause eye damage. Do not operate without the covers installed.
Note: Indicates an important point.
CAUTION: Indicates something may happen that could cause loss of data, damage to the equipment, or
personal injury.
Always follow the safety procedures. Do not, in any way, risk injury by working dangerously. Safety is a part of work, and not an
obstacle to it.
• The SLA 750 was designed with safety in mind; however, improper use and malfunctions can cause injury. To prevent unsafe
operation, the SLA 750 automatically shuts down immediately if it detects an unsafe condition.
• Follow these general safety guidelines when operating your SLA 750:
• Read and follow system instructions.
• Follow all safety rules in this section and heed all cautions and warnings in this guide.
• Do not attempt to open the chamber door or windows while a print is in process.
• Do not use any material without rst reviewing its Material Safety Data Sheet (MSDS).
• Secure the power and communication cables to prevent tripping.
• Do not attempt to access, service, or adjust the internal components.
• Do not attempt to perform any maintenance procedures unless you have been specically trained to do so.
• Operators are trained to operate the system and to perform all the necessary tasks to print a part.
•Certied service personnel have completed the 3D Systems service training package and are certied to perform service
tasks. Certication may occur at various levels and servicers should only perform tasks that they are authorized and
certied to complete.
• Do not ignore warning signs that are posted during service operations.
• If you see an error message on the system's display, refer to https://support.3dsystems.com/s/article/sla-750-
troubleshooting-ug?language=en_US before resuming operation.
• To prevent potential skin irritation and sensitization due to contact with waste material, follow all guidelines in Chemical
Safety.
• To prevent pinch and crush injuries to the hand, use caution when replacing the platform inside the print chamber. The
platform carriage will not move when the chamber door is open.
3D Systems, Inc. 2 p/n 40-D150, Rev. C

2.2 Laser Safety
The SLA 750 uses a UV (ultraviolet) solid-state frequency tripled Nd:YVO4 laser which utilizes a 355 nm wavelength laser with a
maximum power output of 3 watts at the vat (EN/IEC 60825-1:2014). The laser is located in the Printhead area of the SLA 750.
The SLA 750 is a Class I (1) laser product. Class 1 products are not considered harmful and require no special safety precautions
under normal operating conditions. The laser beam is completely conned. The viewing windows in the Print Chamber block
the UV laser radiation from exposure outside of the print area.
Laser Radiation: Operating the equipment or performing procedures other than those specied within this
guide may result in exposure to hazardous, invisible laser radiation.
Laser Radiation: Never stare directly into a laser beam, nor into any beam reection, whether diffused or
from a mirror-like surface.
Laser Radiation: During normal operation, and with all panels installed, the SLA 750 is classied as a Class I (1)
laser device . If any of the interlocks are defeated, the SLA 750 becomes a Class IV (4) device . Eye damage can
occur by looking directly into the beam or by viewing any type of beam reection
Laser Radiation: Interlocks are to be defeated only by trained personnel when needed during service
procedures.
Embedded Laser Specications
• Max output of laser radiation: 3W max average power
• Pulse duration: 10 ns, 80 kHz
• Emitted wavelength(s): 355 nm
• Name and publication date of the standard: EN/IEC 60825-1:2014
Control Switches
The locations of control switches are illustrated in the section Printer - Outside View. Master and Emergency power shut-off
switches are described in the following paragraphs.
Master Power Shut-off
The SLA 750 has a master circuit breaker switch located on the electrical cabinet module on the right side of the machine.
Emergency Stop
All SLA 750 printers have (3) Emergency Stop (E-Stop) buttons on the left-side of the UI panel, inside the print chamber and laser
assembly. They are bright red with a yellow background. Pressing one cuts power to all moving axes, closes the laser shutter,
and puts the laser in safe mode. To release the E-Stop, pull it out and turn it clockwise. The system cannot run while an E-Stop is
depressed. The SLA 750 Dual will have an additional E-Stop on its B-side Laser Assembly in the identical location seen below.
3D Systems, Inc. 3 p/n 40-D150, Rev. C

CAUTION: The Emergency Stop Button should be used when there is a fail situation in the system . Use the
emergency stop button when the system needs to be stopped quickly.
USER INTERFACE LASER LED
The user interface, which is detailed in the section User Interface , contains a tri-colored LED light that indicates whether or not
the laser is enabled. A SLA 750 printer will illuminate a solid blue color when the laser is enabled. A SLA 750 Dual will illuminate
a bright amber color when the right laser is enabled. A SLA 750 Dual will illuminate a bright white color when the two lasers are
enabled. When the laser(s) are not enabled, the LED will be dimmed.
3D Systems, Inc. 4 p/n 40-D150, Rev. C

SAFETY INTERLOCKS
Safety interlocks protect the user from possible UV Laser radiation exposure when certain doors or panels are opened.
There are a total of (6) interlock switches. If an SLA 750 Dual, there will be one additional interlock inside the B-side laser
assembly, identical to what is seen below.
Inside of printer Inside of laser assembly
3D Systems, Inc. 5 p/n 40-D150, Rev. C

2.3 Label Installation Diagram
LASER SAFETY WARNING LABELS
Laser safety warning labels for the SLA 750 and SLA Vat are located at system locations which are indicated below. If an SLA 750
Dual, the B-side Laser Assembly will have identical warning stickers to those seen in the Single-Laser Assembly seen below. In
the back electrical cabinet, an SLA 750 Dual will have an additional Mirror Driver E-box with identical labels to those seen in the
single Mirror Driver E-box shown below.
ITEM DESCRIPTION QTY LABEL
1DANGER - CLASS IV (4) INVISIBLE
LASER RADIATION WHEN OPEN AND
INTERLOCK DEFEATED. AVOID EYE
OR SKIN EXPOSURE TO DIRECT OR
SCATTERED RADIATION
5
2WARNING - ACCESS RESTRICTED TO
AUTHORIZED PERSONNEL ONLY
4
3Danger - ARCH FLASH AND
SHOCK HAZARD. APPROPRIATE PPE
REQUIRED.
3
4SHOCK WARNING 1
5WARNING - PINCH POINT HAZARD.
KEEP HANDS CLEAR.
2
6WARNING - BURN HAZARD. HOT
SURFACE INSIDE, PLEASE ALLOW TO
COOL BEFORE SERVICING.
1
7WARNING - RADIATION 1
3D Systems, Inc. 6 p/n 40-D150, Rev. C