3D printer Elegoo Saturn 4 Ultra — high-resolution 16K, large build volume

Elegoo Saturn 4 Ultra is a resin MSLA 3D printer that combines ultra-high resolution and a large build volume to produce finely detailed and dimensionally consistent parts. The printer uses a 10-inch 16K monochrome LCD (15120 × 6230 pixels) and an XY pixel size of roughly 14 × 19 µm to reproduce very small features, while a Z-axis accuracy of 0.02 mm and layer thickness range from 0.01–0.2 mm enable controlled surface finish and functional detail. Saturn 4 Ultra integrates Tilt Release technology for faster layer separation, an intelligent heating system that holds resin at about 30°C, and an onboard AI camera for real-time print monitoring. The device supports Wi‑Fi (2.4/5 GHz) with cluster printing, automatic bed leveling with four sensors, and a metal chassis designed for regular workshop use.

Advantages

High native resolution and fine XY pixel pitch deliver exceptionally sharp surfaces and precise edges suitable for small intricate models as well as larger detailed parts. Tilt Release peeling reduces peel forces and increases achievable printing speed up to 150 mm/h while improving resin economy. Active temperature control stabilizes resin viscosity to improve layer adhesion and reduce print defects. Built-in AI camera and smart sensors provide automated monitoring and fault detection, reducing failed prints and material waste. Wi‑Fi connectivity and Cluster Printing enable synchronized multi‑printer workflows for batch production.

Suitable for

• Miniatures and tabletop models requiring fine detail
• Dental and medical models for prototyping and casting
• Jewellery patterns and small precision parts
• Engineering prototypes and functional components with fine features
• Small-batch production and synchronized multi-printer setups

Key specifications

• Printing technology: MSLA (masked stereolithography)
• Display: 10-inch 16K monochrome LCD, 15120 × 6230 pixels
• XY resolution (approx.): 14 × 19 µm per pixel
• Z-axis accuracy: 0.02 mm
• Layer thickness: 0.01–0.2 mm
• Maximum printing speed: up to 150 mm/h (with Tilt Release)
• Build volume: 211.68 mm × 118.37 mm × 220 mm (L × W × H)
• Light source: COB with Fresnel collimating lens, 405 nm wavelength
• Operating temperature control: heated resin tank (~30°C)
• Connectivity: USB and Wi‑Fi (2.4 GHz / 5 GHz); cluster printing supported
• Control interface: 4.0-inch capacitive touch screen
• Onboard camera: 1920 × 1080 AI camera for monitoring and time-lapse
• Dimensions (printer): 327.4 × 329.2 × 548 mm (L × W × H)
• Net weight: approximately 16.1 kg; gross weight: approximately 18.7 kg

How to use

Place the printer on a stable, level surface and connect the power and network as described in the manual. Install the build plate and resin tank, pour suitable photopolymer resin into the tank, and use ChituBox or compatible slicing software to prepare models and generate exposure settings. Start prints from the printer’s touchscreen, USB drive, or via Wi‑Fi. Monitor progress using the built-in AI camera and refer to the automatic leveling routine before printing to ensure a reliable first layer. After printing, follow standard post-processing: remove the model from the build plate, rinse uncured resin according to resin manufacturer guidance, and post-cure parts to reach final mechanical properties.

Usage recommendations

Use resins recommended for MSLA printing and set layer thickness and exposure parameters according to the resin manufacturer. Maintain the resin temperature near 30°C for consistent results, and keep the resin tank clean to avoid contamination. Calibrate the build plate with the automatic leveling procedure and inspect sensors periodically. For batch production, use Cluster Printing over a stable 2.4/5 GHz network and schedule maintenance to preserve the 16K LCD and COB light source performance.