For large-format 16K resin printing

Uniformation GK3 Ultra

An MSLA resin printer with a 13.5-inch 16K screen, a 300 × 160 × 300 mm build volume, and XY resolution advertised at 20 × 26 µm per Uniformation.

In short The UniFormation GK3 Ultra is an resin (MSLA) 3D printer with a 300 × 160 × 300 mm (11.8 × 6.3 × 11.8 in) build volume. Uniformation claims a 13.5-inch 16K LCD; the printer measures 455 × 400 × 575 mm (17.9 × 15.7 × 22.6 in).

Documentary analysis · Not personally tested

Uniformation GK3 Ultra, manufacturer imageResin · MSLA
Image provided by Uniformation. The pictured equipment does not establish the bundle contents.
300×160×300mmBuild volume
16K13.5″LCD screen

Why consider it?

A 16K screen at 15120 × 6230 pixels, a COB light source with a Fresnel lens, a sealed enclosure with internal air circulation and purification, and an automatic resin refill system per Uniformation.

What to verify

A 300 × 160 × 300 mm plate and a sealed enclosure need floor space and carbon filter upkeep; exact bundle contents should be checked on the retailer's listing.

UniFormation GK3 Ultra specifications

Technology
Resin (MSLA)
Build volume
300 × 160 × 300 mm (11.8 × 6.3 × 11.8 in)
Printer dimensions
455 × 400 × 575 mm (17.9 × 15.7 × 22.6 in)
Enclosure
Protective cover
LCD screen
13.5 in · 16K
Multicolor
One resin at a time; no automatic color or material switching.
Materials
Standard resin, water-washable resin, ABS-like resin, and other specialty 405 nm resins per Uniformation.
Connectivity
USB, Wi-Fi, Ethernet
Listed features
Built-in air filtration
W 455 mmD 400 mmH 575 mm
Printer 455 × 400 × 575 mmBuild volume 300 × 160 × 300 mm

How much space does it need?

The UniFormation GK3 Ultra measures 455 × 400 × 575 mm (17.9 × 15.7 × 22.6 in) for a 300 × 160 × 300 mm (11.8 × 6.3 × 11.8 in) build volume: the dashed box is the printer, the solid cube the largest theoretical part, about 14% of the machine’s volume. Add room for the spool or multicolor unit, cables and ventilation.

Source: official Uniformation pages (uniformation3d.com), checked September 28, 2026. Manufacturer claims, not our measurements. Build volume is nominal: orientation, supports and reserved zones can reduce the usable space.

Which projects is it for?

The GK3 Ultra targets creators, studios, and production users who need more room for large figures, batches of parts, or mid-size prototypes, on a 300 × 160 × 300 mm build volume per Uniformation, well beyond what a standard-size resin printer offers in one print.

The smart heating system, advertised as working even at 0°C ambient per Uniformation, targets unheated workshops and garages where cold resin would otherwise complicate startup.

Materials and setup

The 16K screen at 15120 × 6230 pixels with XY resolution advertised at 20 × 26 µm, paired with a COB light source and Fresnel lens, targets uniform UV light across the whole plate per Uniformation, for standard, water-washable, or ABS-like resins.

The automatic resin refill system and factory-calibrated build plate simplify setup; only a few simple checks are needed out of the box per the manufacturer.

What the bundle includes or not

The sealed enclosure includes internal air circulation with a honeycomb activated carbon filter and a purification fan to cut resin odor during printing per Uniformation. Exact accessories included should be checked on the retailer's listing.

Connectivity covers USB, WiFi, and Ethernet for file transfer, leaving the choice of transfer method to fit the workshop's setup and network conditions.

Alternatives to compare

For a more compact 8K option, the GKtwo stays within the same Uniformation lineup at a lower price. For large-format resin from another manufacturer, the Saturn 3 Ultra covers similar use cases.

The resin printer buying guide helps compare the GK3 Ultra's 16K resolution against 12K or 8K screens based on the detail level you need.

Frequently asked questions

What is the build volume of the UniFormation GK3 Ultra?

Uniformation lists a 300 × 160 × 300 mm (11.8 × 6.3 × 11.8 in) build volume (width × depth × height). That is the largest theoretical part size; supports, brim and orientation reduce the usable space.

How big is the UniFormation GK3 Ultra?

According to Uniformation, the UniFormation GK3 Ultra measures 455 × 400 × 575 mm (17.9 × 15.7 × 22.6 in) (width × depth × height). Leave extra clearance for the spool, cables and airflow, and more if you add a multicolor unit.

What resolution does the UniFormation GK3 Ultra offer?

Uniformation lists a 13.5-inch 16K LCD. Finer pixels help with miniature detail, but supports, resin and washing still decide the final surface.

Does the sealed enclosure fully remove resin odor?

Uniformation advertises a built-in honeycomb activated carbon filter and purification fan, which reduces odor without eliminating it entirely; a ventilated room is still recommended.

Does the build plate need calibrating on arrival?

Uniformation states factory calibration is already done; only simple checks are needed before the first print per the manufacturer.

What's the difference from the GKtwo?

The GK3 Ultra steps up to a 16K screen on a larger plate (300 × 160 × 300 mm) with a sealed enclosure, versus an 8K screen and 228 × 128 × 245 mm for the GKtwo per Uniformation.

Similar printers to compare

Sources and limits

  • Source: official Uniformation pages (uniformation3d.com), checked September 28, 2026. Manufacturer claims, not our measurements.
  • How we assess specifications

We have not measured noise, real printing speed, accuracy or reliability, so none of these is rated here.