Product test: Elegoo Saturn 4 Ultra – The new flagship in 3D printing

The Elegoo Saturn 4 Ultra 3D printer marks a decisive advance in the world of MSLA printing technology. As the flagship model of its series, the printer offers an impressive range of innovative features that are interesting for both experienced users and beginners. In this detailed test report, we take a close look at the technical specifications, user experience, and print quality of the Saturn 4 Ultra.

Scope of delivery and first impressions

The Elegoo Saturn 4 Ultra is securely delivered in a 670 x 460 x 460 mm box. The printer itself has a compact size of 327 x 329 x 548 mm, making it ideal for use on desks or workbenches. The scope of delivery is extensive and includes everything needed for a successful start:

• Elegoo Saturn 4 Ultra 3D printer
• WiFi antenna
• Build plate and resin tank
• AI camera for error detection
• Gloves, masks, spatula, and various tools
• USB stick with test file and software
• User manual in various languages

The well-thought-out packaging and rich scope of delivery make it easier to get started with 3D printing.

Technical data and special features

Printing technology and build volume

The Elegoo Saturn 4 Ultra uses MSLA technology, where light is projected through an LCD matrix to cure the resin layer by layer. This enables extremely precise prints with an impressive XY resolution of 19 x 24 micrometers, ensuring exact and fine detail reproduction.

Technical data at a glance:

• Build volume: 218.88 x 122.88 x 220 mm
• Display: 10-inch 12K monochrome LCD with a resolution of 11520 x 5120 pixels
• Maximum print speed: 150 mm/h
• Z-axis accuracy: 0.02 mm
• Light source: COB + Fresnel collimation lens, 405 nm
• Device display: 4-inch capacitive touchscreen
• Connections: USB, WiFi
• Slicer software: CHITUBOX

These technical features make the Saturn 4 Ultra a powerful device that leaves hardly any wishes unfulfilled in terms of accuracy and speed.

Setup and commissioning

Setting up the printer runs smoothly. After connecting the WiFi antenna and USB stick and turning it on, the printer performs a self-test to ensure all components are functioning correctly. A practical feature is the automatic calibration of the LCD display. Once the printer is connected to WiFi, updates are automatically downloaded and installed, keeping the operation always up to date.

Improved user-friendliness

One of the most remarkable innovations of the Saturn 4 Ultra is the redesigned cover. Instead of fully removing it, the cover can now be folded back. This adjustment is especially useful when working with resin-stained gloves, as access to the print area is significantly easier.

Another advantage is the optimized screws on the resin tank, which are now easier to remove. This saves time during maintenance and cleaning of the tank. However, cleaning the print plate remains a challenge due to the new rods between the print plate and the mount. A clip system, similar to the one on the UniFormation GKtwo, could have helped here.

Print quality and performance

The first print

For our first test print, we used Elegoo's ecoResin Tough. With a maximum resin capacity of one liter in the tank, the Saturn 4 Ultra is well equipped for longer print jobs. The printing process itself went smoothly, and after about 3.5 hours, the first 67 mm were completed.

Particularly practical is the ability to make adjustments during printing. For example, exposure time or the number of base layers can be changed directly during the process. Another innovation is the 3D live display of the printing progress, which allows the user to visually track the current status.

Despite the excellent print quality, there are minor challenges in handling the device. Due to the longer rods of the print plate, it became difficult to keep the printer clean. Resin dripped slightly onto the device, and cleaning proved to be laborious.

Intelligent features

AI camera and mechanical sensors

One of the most innovative features of the Elegoo Saturn 4 Ultra is the integration of an AI camera for Intelligent Error Detection. The camera monitors the printing process in real time and detects possible printing errors, such as distortions or empty build plates, before they can lead to bigger problems. Additionally, the camera offers the possibility to create time-lapse videos of the printing process, which is especially useful for documenting and sharing projects within the 3D printing community.

Another safety feature is the Intelligent Mechanical Sensor, which contributes to Residue Detection. This system detects foreign objects or leveling errors and thus protects the sensitive LCD screen from damage.

Conclusion: An all-around successful device with potential

The Elegoo Saturn 4 Ultra impresses across the board. With its high printing accuracy, innovative features like the AI camera and mechanical sensor, as well as quick and straightforward setup, it clearly stands out from other 3D printers in its price range.

Advantages:

• Excellent print quality and precision
• AI camera for real-time monitoring and error detection
• Automatic calibration and easy operation
• Improved user-friendliness through new cover design
• Ability to adjust the printing process during printing

Disadvantages:

• Cleaning the print plate made difficult due to the rods
• Slight dripping issues when handling resin

Despite minor weaknesses, the Elegoo Saturn 4 Ultra offers unbeatable value for money and is a clear recommendation for both 3D printing beginners and advanced users. The wide range of features and the ability to precisely monitor and optimize the printing process make it a top choice in the world of 3D printing.