Elegoo Saturn 4

Elegoo Saturn 4: 12K Detail and Tilt Release Speed for Everyone

The Elegoo Saturn 4 is an LCD resin 3D printer that brings 12K high resolution to an affordable, surprisingly fast desktop format. Featuring a 10-inch mono screen, a 405nm COB light source with Fresnel collimating lens, and innovative Tilt Release technology, this machine is designed for makers, miniature hobbyists, modelers, jewelers, and creators who want to reproduce textures, layers, and micro-details with a level of sharpness that's hard to match at this price point. If you're upgrading from a Mars or an older Saturn generation, you'll notice a clear jump in resolution, print reliability, and ease of use thanks to one-click auto leveling.

The Saturn 4 combines a generous build volume with very high pixel density, delivering large prints without sacrificing fine detail. It's the ideal choice for anyone looking for studio-quality results without the hassle, on a solid platform to grow with. In our Elegoo printer lineup, you'll find this and other machines from the brand, all with fast shipping from Spain.

Precision, 12K Screen, and Light Source

At the heart of the Saturn 4 is its 10-inch monochrome LCD screen with 12K resolution (11520 × 5120 pixels), delivering an XY resolution of approximately 19 × 24 µm. This pixel density reproduces clean edges, smooth surfaces, and tiny details—such as scales, fabric textures, gem settings, or lettering—with barely perceptible layer transitions. For work that demands maximum sharpness, it's a top contender in the high-definition resin printing category.

Lighting is handled by a 405nm COB light source paired with a Fresnel collimating lens, an optical system that homogenizes the beam and achieves 92% light uniformity with beam control below 5°. In practice, this means more consistent curing across the entire print area: parts come out equally sharp at the center and corners, with less distortion and fewer exposure variations from one zone to another.

Smart Automation and Real-World Features

One of the Saturn 4's biggest selling points is its one-click auto leveling, managed by an intelligent mechanical sensor that calibrates the build plate without paper sheets or manual screws. This same sensor enables a smart self-check system before every print.

The machine includes several protection features designed to safeguard both your prints and the hardware:

• Foreign object detection: identifies cured resin debris in the vat to prevent LCD screen damage when the build plate descends.
• Low resin warning: alerts you when resin levels are too low to complete the print.
• Leveling failure alarm: notifies you of any calibration issues so you don't start a print that's doomed to fail.

Layer separation is handled by Tilt Release technology: instead of pulling the part straight up, the vat tilts slightly to peel each layer away with less force. The result is a gentler release that reduces stress on both prints and the FEP film, improves success rates on delicate models, and enables print speeds of up to 70 mm/h.

Design and Build

The Saturn 4 keeps the solid, compact look that defines the Saturn lineup, featuring a sturdy enclosure and a protective cover that blocks ambient UV light during printing. The treated-surface build plate promotes strong first-layer adhesion, and the resin vat is designed for easy filling and cleaning. The printer is controlled via a 3.5-inch resistive touchscreen with a straightforward, no-nonsense interface. File transfer is done over USB — simple and network-independent.

The LCD panel comes factory-protected with a 9H tempered glass cover, adding an extra layer of defense against scratches and resin splatter. That said, using dedicated screen protectors is strongly recommended to extend screen life — they're far cheaper to replace than the LCD itself.

Specifications

Compatible Resins and Software

The Saturn 4 works with any standard 405nm UV resin, giving you near-total freedom to choose the right material for each project. Browse our full 3D printing resin catalog, including Elegoo resins, which are specifically formulated and profiled for this printer family. Depending on your application, there are targeted options available: high-detail resins for miniatures, ABS-like engineering resins for functional parts, clear resins for optical prototypes, and flexible resins for impact-resistant components.

If you prefer a cleaner workflow without isopropyl alcohol, water-washable resins are a great entry point into resin printing — find yours in the water-washable resin category. On the slicing side, the Saturn 4 is compatible with the most popular slicers in the industry — Voxeldance Tango (bundled by Elegoo), Chitubox, and Lychee Slicer — with pre-configured profiles that make getting your first print going much easier.

What's in the box?

The Saturn 4 arrives ready to print right out of the box. Inside you'll find the printer itself, the build plate, the resin vat with PFA film, the power supply, a USB drive with test files and software, basic assembly and post-processing tools (spatula, funnel/filter), gloves, and the user manual. We recommend completing your setup with everyday consumables such as isopropyl alcohol and post-processing supplies.

Who is it for?

The Saturn 4 is the perfect machine for miniature painters and wargaming hobbyists, scale modelers, figure designers, jewelers, and makers who want maximum resolution without paying flagship prices. It's also an excellent choice as a dedicated detail printer in workshops that already run FDM machines, or as a major upgrade for anyone coming from an older 4K/8K printer. Its combination of 12K resolution, a generous build volume, and auto-leveling makes it accessible for beginners while remaining capable enough for semi-professional use.

Workflow: print, wash, and cure

Resin printing involves three stages. 1) Print: slice your model, export it to USB, and start the print after auto-leveling. 2) Wash: once printing is done, remove the part and clean off uncured resin—typically with isopropyl alcohol, or with water if you're using water-washable resin. 3) Cure: expose the part to UV light to reach its final hardness and stability. To streamline the wash and cure process with consistent results, we recommend a dedicated station from our range of wash and cure machines.

Recommended accessories

• Replacement films: keep your resin vat in top condition with spare FEP, nFEP, and ACF films.
• Screen protectors: protect the 12K LCD from resin splashes and scratches with compatible screen protectors.
• Post-processing supplies: stock up on isopropyl alcohol, resin filters, and gloves for a clean, efficient workflow.

Saturn 4 vs. Saturn 4 Ultra

The Saturn 4 and the Saturn 4 Ultra share the same build volume and overall philosophy, but there are clear differences. The base Saturn 4 features a 12K LCD, speeds of up to 70 mm/h with Tilt Release, USB connectivity, and a 3.5" resistive touchscreen. The Ultra adds higher print speeds, advanced release and intelligent heating systems, WiFi connectivity, and extras like a built-in camera. If your priority is the best balance of resolution and value, the base Saturn 4 is the smarter choice; if you need maximum speed and advanced automation, the Ultra is worth the premium.

Frequently asked questions

What resolution does the Elegoo Saturn 4 have?

It features a 10-inch mono LCD with 12K resolution (11520 × 5120 pixels), delivering an XY resolution of approximately 19 × 24 µm—ideal for fine detail work.

How fast does it print?

Thanks to Tilt Release technology, the Saturn 4 can reach print speeds of up to 70 mm/h, with a smoother release motion that reduces print failures on delicate parts.

Does it require manual leveling?

No. The Saturn 4 features one-click auto-leveling via a mechanical sensor, along with self-checks and automatic alerts for leveling failures, low resin, and debris detection.

What resins can I use?

Any standard 405nm UV resin. You can use Elegoo resins or any other brand, including high-detail, tough, transparent, flexible, or water-washable variants.

What slicing software is compatible with the Saturn 4?

The Saturn 4 is compatible with Voxeldance Tango (Elegoo's included slicer), Chitubox, and Lychee Slicer — all of which have pre-configured profiles for this printer.

Do I need a wash and cure station?

It's not required, but highly recommended: it automates the washing and UV curing process, improves part consistency, and makes cleanup much easier and cleaner than doing it by hand.