For detailed miniatures with 385 nm resin
UniFormation GK3 Pro
A 16K resin printer with a 211 × 118 × 240 mm build volume, a 385 nm light source, resin heating and a ball-screw Z axis, according to UniFormation.
In short The UniFormation GK3 Pro is a resin (MSLA) 3D printer with a 211 × 118 × 240 mm (8.3 × 4.6 × 9.4 in) build volume. UniFormation claims 14 µm XY resolution.
Documentary analysis · Not personally tested
Resin · MSLAWhy consider it?
A 16K display with 14 × 19 µm pixels and heating settings of 25 or 30 °C, according to the manufacturer. Automatic refill supports longer jobs.
What to verify
The 385 nm light source requires compatible resin. Its 211 × 118 × 240 mm volume is smaller than the GK3 Ultra.
UniFormation GK3 Pro specifications
- Technology
- Resin (MSLA)
- Build volume
- 211 × 118 × 240 mm (8.3 × 4.6 × 9.4 in)
- Enclosure
- Protective cover
- XY resolution
- 14 µm
- Multicolor
- One resin at a time; automatic refill does not switch colors.
- Materials
- Resins with confirmed 385 nm compatibility and suitable exposure profiles; check each formulation.
- Connectivity
- Wi-Fi, USB, Ethernet
- Listed features
- Built-in air filtration
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 fit?
The GK3 Pro is suited to miniatures, busts and small parts with fine surface details. Its 211 × 118 mm plate can hold groups of small models, while the 240 mm height accommodates taller designs. Leave room for supports and for the orientation chosen in the slicer when checking whether a project fits.
UniFormation specifies a 15120 × 6230 display resolution and 14 × 19 µm pixels. Those figures describe the display rather than guaranteed dimensional accuracy for a finished part. Exposure, resin behavior and support placement still affect the result.
Resin and temperature
The light source operates at 385 nm. Before reusing a bottle from another machine, check that its maker supports this wavelength and supplies suitable settings. A label mentioning only 405 nm does not establish compatibility with this printer. Test a small part before committing a full plate.
Built-in heating offers settings of 25 and 30 °C. This can help maintain more consistent conditions in a cool workspace, while the correct target still depends on the resin instructions. A ball-screw Z axis guides the build plate during printing.
Plan the complete workspace
Automatic resin refill reduces the need for manual top-ups during longer jobs. You still need to check the available supply and inspect the vat before starting a batch. Printing is only one stage: washing and final curing require their own equipment and a suitable space for handling uncured parts.
USB, WiFi and Ethernet provide several ways to transfer files. Camera monitoring and app features depend on the available software and firmware. Confirm which remote functions are active before making them a requirement for your workflow.
What to compare
The GK3 Ultra offers a larger build volume for bigger pieces or more models on each plate. The Pro is the more compact option. Compare replacement vat films, screens and compatible resin availability as well as the printer itself: these determine how conveniently you can keep using the machine over time.
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.