Elegoo Saturn 3 Ultra

The Elegoo Saturn 3 Ultra is a large desktop MSLA resin printer built around a 10-inch 12K monochrome LCD. It's the step up from a Mars-class machine: a squad of miniatures, a big bust or a prototype housing fits on the plate in one go. Over the plain Saturn 3 the Ultra adds a metal body, a thicker lead screw and Wi-Fi.

Build volume is 218.88×122.88×260 mm and the screen runs 11520×5120 pixels, though the pixel isn't square: 19×24 μm. There's no tilting vat — the 150 mm/h rating comes from the low-peel ACF release film, and only high-speed resins reach it. Layer height spans 0.01–0.2 mm, Z accuracy is 0.01 mm, and files arrive over Wi-Fi or USB.

Pros

• 12K screen at a 19×24 μm pixel: reviewers found calibration pins from 400 down to 50 μm cleaner than on a Mars 3
• The 218.88×122.88×260 mm plate takes a squad of miniatures or a full bust in one run, no cutting the model up
• ACF film shortens the layer cycle: reviews measure roughly 30% off print time on the fast profile even with ordinary resin
• Four-screw leveling holds — reviewers level once at setup and never touch it again
• The bundled USB carbon-filter purifier and lid kill most of the resin smell — tolerable in a living room
• 9H tempered glass over the LCD and a laser-etched plate: the panel survives spills, prints stick without scuffing

Cons

• None of the Saturn 4 generation automation is here: manual four-screw leveling, no monitoring camera, no resin heater
• The ACF film grips hard — reviewers describe prints that refused to release and cracked on removal, fixed with a heat gun
• The film is slightly hazy and scatters light, so walls fuse unless exposure is tuned carefully in the 0.8–1.5 second range
• Firmware updates only from a USB stick: the Wi-Fi path fails with a generic error, and there's no Ethernet port

It suits people who print big and often: batches of tabletop miniatures, busts, casting masters, enclosures and small tooling. A first-time owner can handle it — setup is unbox and level the plate — but gloves, isopropyl alcohol and a wash-and-cure station come with the territory.

Bottom line: a workhorse 12K machine with a big plate and honest speed, where the low price is paid in missing automation. If convenience matters more than plate area, look at the Saturn 4 Ultra.

Reviews

• The 3D Printer Bee — Elegoo Saturn 3 (+Ultra): Review from a Miniature Painter
• Gaming Trend — Elegoo Saturn 3 Ultra 12K Review: 3D Printing Made Easy?!
• GamesRadar+ — Elegoo Saturn 3 Ultra 12K Review