3D Printing InfoPrinter comparison
Snapmaker U1 vs UniFormation GKtwo
Compare hardware, build volume, printing specifications, dated prices and sources.
2 selected · all documented properties
Open these two in the interactive comparisonMore Snapmaker U1 comparisonsMore UniFormation GKtwo comparisons
| Property | Snapmaker U1TOOLCHANGER | UniFormation GKtwoRESIN |
|---|---|---|
| Identity | ||
| Brand | Snapmaker | UniFormation |
| Class | TOOLCHANGER | RESIN |
| Identity & Market | ||
| Manufacturer & exact marketed model name (verify the exact product identity first) | Snapmaker U1 3D Printer[1] | UniFormation GKtwo 10.3" 8K Resin Printer[2][3] |
| Street price (USD; dated snapshot per entry) | $849.00 against a $999.00 compare-at price on us.snapmaker.com, but the listing is marked Unavailable, checked Aug 2026[1] | $749.99 on uniformation3d.com but marked Sold out, checked Aug 2026 (the page shows a compare-at price of $0.00, i.e. none set)[2] |
| Variants & sibling models — and how to tell them apart (spec-contamination risk) | An optional top cover changes what the machine can print: without it PLA/PETG/TPU/PVA/PCTG; with it ABS, ASA, PA, PC and PET are added; with the top cover AND a hardened-steel nozzle, carbon- and glass-fibre grades. A stated material list for the U1 is therefore meaningless without saying which configuration it refers to[1] | UniFormation lists GKtwo variants by region and bundle (GKtwo ALL, GKtwo ALL UK) rather than by hardware, so the hardware specification is common; what changes is what ships in the box. Not to be confused with the earlier GKone[2] |
| Physical & Frame | ||
| Build volume X×Y×Z (mm) — advertised vs actually usable | 270 x 270 x 270 mm[1] | 228 x 128 x 245 mm[2][3] |
| Machine footprint (mm) & clearance needed (cable/spool overhang) | 584 x 499 x 730 mm[1] | 350 x 315 x 455 mm[2][3] |
| Net weight (kg) | 18.2 kg[1] | 20 kg packaged (UniFormation publishes package weight, not net weight)[2][3] |
| Enclosure: open / enclosed; panel material; door/lid | Open as sold; a top cover is an optional accessory that raises the supported material range[1] | Open-frame MSLA with a UV-blocking cover[2][3] |
| Kinematics & Motion Hardware | ||
| Kinematics (bedslinger i3 / CoreXY / other) | Four independent toolheads on a changer; Snapmaker quotes a 5-second swap[1] | MSLA — photocuring LCD, single Z axis, straight-lift peel[2][3] |
| Speed & Acceleration | ||
| Max print speed (claimed, mm/s) | 500 mm/s maximum toolhead speed (manufacturer claim)[1] | Not documented |
| Max acceleration (claimed, mm/s²) | 20,000 mm/s2 maximum (manufacturer claim)[1] | Not documented |
| Max volumetric flow claimed (mm³/s) | 32 mm3/s maximum hotend flow (manufacturer claim)[1] | Not documented |
| Vibration Compensation / Input Shaping | ||
| Input shaping supported? Implementation (Klipper IS / Marlin ZV / proprietary) | Input shaping with an accelerometer, run as a calibration routine[1] | Not documented |
| Extrusion Pressure Control | ||
| Pressure advance (Klipper) / linear advance (Marlin) supported? | Pressure advance, with automatic flow compensation calibration[1] | Not documented |
| Hotend & Nozzle | ||
| Max nozzle temp claimed AND firmware max temp limit (both values) | 300 °C maximum (manufacturer claim)[1] | Not documented |
| Stock nozzle material (brass / hardened steel / plated copper / composite tip) | Stainless steel as standard; hardened steel needed for fibre-filled grades[1] | Not documented |
| Heated Bed & Surface | ||
| Max bed temp claimed AND firmware limit | 100 °C maximum (manufacturer claim)[1] | Not documented |
| Bed surface (material, texture, coating), single/double-sided | Flexible steel sheet with a PEI surface[1] | Not documented |
| Leveling & Z-Offset | ||
| Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe) | Mesh bed levelling. Automatic toolhead offset calibration is done by coordinate measuring[1] | Not documented |
| Filament Handling & Detection | ||
| Filament runout sensor (type, location) | Filament run-out detection, plus air-printing detection and RFID filament recognition[1] | Not documented |
| Multi-material/multi-color capability or official upgrade path | Four toolheads with auto-feed and a backup mode; toolhead swap error detection, build-plate presence and obstruction detection[1] | Not documented |
| Cooling & Air Handling | ||
| Part-cooling fan(s): count, size, ducting design | Main plus auxiliary part-cooling fans[1] | Not documented |
| Electronics & Power | ||
| Input voltage (110/220 V, switch or auto) | Not documented | 110/220 V[2][3] |
| Total rated power draw | Maximum input power 1150 W at 220-240 V, 400 W at 100-120 V; maximum input current 6 A / 4 A respectively[1] | Not documented |
| Firmware & Openness | ||
| Firmware base & current version (Klipper fork / Marlin fork / proprietary) | Klipper[1] | Not named. Slicers: CHITUBOX, the GKtwo slicer, and Lychee. File format STL[2][3] |
| Connectivity, UI & Camera | ||
| Display: size, type, touch? | 3.5-inch, 320 x 480 touchscreen[1] | 5-inch touchscreen (control panel — not the masking LCD, see W1)[2][3] |
| WiFi (band/standard), Ethernet, USB ports, SD/flash-drive | Wi-Fi 2.4 GHz (802.11b/g/n) and USB flash drive. No Ethernet listed[1] | USB file transfer[2][3] |
| Camera: built-in / optional? Resolution & framerate (verify — marketing often omits real fps) | 2 MP built-in chamber camera for live view[1] | Not documented |
| Power-Loss & Interruption Recovery | ||
| Power-loss recovery: mechanism (how is state saved? capacitor / eeprom / file on shutdown?) | Power-loss recovery supported; mechanism not published[1] | Not documented |
| Materials Support | ||
| Officially supported filament list | Base: PLA, PETG, TPU, PVA, PCTG. With the optional top cover: adds PET, ABS, ASA, PA, PC. With top cover and a hardened-steel nozzle: adds carbon- and glass-fibre-reinforced polymers[1] | 402.5-405 nm photopolymer resin. No closed compatibility list published[2][3] |
| Independently Measured Performance | ||
| Dimensional accuracy measurements (third-party, with numbers) | Not documented | Printing tolerance +/-0.1 mm for lengths up to 100 mm, +/-0.1% beyond — a manufacturer specification, not an independent measurement[2] |
| Resin & MSLA | ||
| Masking LCD | Not documented | 10.3-inch masking LCD, 7680 x 4320 px (8K), XY pixel pitch 29.6 um (manufacturer specification)[2][3] |
| Light source | Not documented | Photocuring LCD light engine at 402.5-405 nm. UniFormation does not publish the LED count or optical design on this page[2][3] |
| Layer exposure times | Not documented | 2-3 s per layer at 0.05 mm layer height (manufacturer figure — one of the few makers here that states the layer height its exposure figure assumes). Sortable value is the midpoint[2][3] |
| Layer height range | Not documented | 0.03, 0.05 and 0.1 mm (three discrete settings, not a continuous range)[2][3] |
| Resin vat & feeding | Not documented | Resin vat capacity 0.7 kg, with built-in resin heating: UniFormation quotes warming to 95 F (35 C) in 8 minutes from 50 F. No auto-refill and no level sensing published[2][3] |
| Fume extraction | Not documented | Built-in odour filter[2][3] |
Manufacturer claims, independent measurements, packages and test conditions retain their source wording. FDM linear speed and resin vertical speed use different units and are not directly comparable. Unknown values are marked “Not documented”. Prices and source dates remain historical snapshots; check the linked guide for product details. Differences highlight text, not a universal winner.
Sources for this comparison
- Snapmaker U1 product page us.snapmaker.com · 2026-08 · vendor
- UniFormation GKtwo 10.3" 8K resin printer product page uniformation3d.com · 2026-08 · vendor
- UniFormation GKtwo technical data table 3djake.com · 2026-08 · vendor