3D Printing Info

Printer comparison

Anycubic Kobra 4 vs UniFormation GKtwo

Compare hardware, build volume, printing specifications, dated prices and sources.

2 selected · all documented properties

Anycubic Kobra 4 vs UniFormation GKtwo — documented properties and sources
PropertyAnycubic Kobra 4BEDSLINGERUniFormation GKtwoRESIN
Identity
BrandAnycubicUniFormation
ClassBEDSLINGERRESIN
Identity & Market
Manufacturer & exact marketed model name (verify the exact product identity first)Anycubic Kobra 4[1]UniFormation GKtwo 10.3" 8K Resin Printer[2][3]
Release date (announcement and actual shipping)Listed on the Anycubic store from 29 May 2026 (Shopify publish date)[4]Not documented
Street price (USD; dated snapshot per entry)$279.00 with a US plug on store.anycubic.com, Aug 2026, against a compare-at price of $379.00 ($320.90 for the EU plug variant)[4]$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)Shares its 260 mm cube volume and its exact machine dimensions (455.4 x 445.3 x 461.3 mm) with the Kobra X, so those two cannot be told apart on size. The difference is multicolour: the Kobra X ships with native 4-colour capability, while the Kobra 4 needs an ACE 2 Pro unit for multicolour and drying. The Kobra 4 also has a smaller 3.5-inch screen where the Kobra 3 and S1 use 4.3-inch panels[1][5][6]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 usable260 x 260 x 260 mm[1]228 x 128 x 245 mm[2][3]
Machine footprint (mm) & clearance needed (cable/spool overhang)455.4 x 445.3 x 461.3 mm for the printer; the optional ACE 2 Pro is a separate 368 x 291.5 x 236.5 mm unit[1]350 x 315 x 455 mm[2][3]
Net weight (kg)9.9 kg for the printer (ACE 2 Pro 3.7 kg); packaged 12.6 kg bare or 17.5 kg as the Combo[1]20 kg packaged (UniFormation publishes package weight, not net weight)[2][3]
Enclosure: open / enclosed; panel material; door/lidOpen frame, no enclosure[1]Open-frame MSLA with a UV-blocking cover[2][3]
Kinematics & Motion Hardware
Kinematics (bedslinger i3 / CoreXY / other)Anycubic's table gives the construction as "Gantry system" - a bed-slinger, not CoreXY[1]MSLA — photocuring LCD, single Z axis, straight-lift peel[2][3]
Speed & Acceleration
Max print speed (claimed, mm/s)600 mm/s maximum print speed (manufacturer claim), 300 mm/s the default[1]Not documented
Recommended/typical print speed300 mm/s default print speed (manufacturer figure)[1]Not documented
Max acceleration (claimed, mm/s²)20000 mm/s2 maximum acceleration, 10000 mm/s2 recommended[1]Not documented
Extruder
Type (direct drive / bowden) & design nameDirect drive ("short distance extrusion")[1]Not documented
Hotend & Nozzle
Hotend design (proprietary/standard; quick-swap mechanism?)Hardened-steel nozzle, 0.4 mm standard with 0.25, 0.6 and 0.8 mm optional[1]Not documented
Max nozzle temp claimed AND firmware max temp limit (both values)300 C maximum nozzle temperature[1]Not documented
Heated Bed & Surface
Max bed temp claimed AND firmware limit100 C maximum hotbed temperature on a PEI spring steel build plate[1]Not documented
Leveling & Z-Offset
Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe)LeviQ 3.0 49-point auto-levelling with Z-offset; Anycubic claims levelling repeatability under 0.02 mm and states no manual compensation is needed[1]Not documented
Filament Handling & Detection
Filament runout sensor (type, location)Filament detection with auto resume, entanglement detection and power-loss resume[1]Not documented
Multi-material/multi-color capability or official upgrade pathMulticolour and active drying both require the separate ACE 2 Pro unit; Anycubic quotes 4 independent brushless feed motors in that unit[1]Not documented
Electronics & Power
Input voltage (110/220 V, switch or auto)Not documented110/220 V[2][3]
Firmware & Openness
Firmware base & current version (Klipper fork / Marlin fork / proprietary)Kobra OS with pressure advance and flow calibration; a built-in accelerometer drives vibration compensation[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 capacitive touchscreen - smaller than the 4.3-inch panels on the Kobra 3 and S1 series[1][6][7]5-inch touchscreen (control panel — not the masking LCD, see W1)[2][3]
On-device UI capabilities (model preview, per-object controls, etc.)Touchscreen plus Anycubic Slicer, the Anycubic app and USB; AI spaghetti detection and object skip supported[1]Not documented
WiFi (band/standard), Ethernet, USB ports, SD/flash-driveUSB, Anycubic Slicer and the Anycubic app[1]USB file transfer[2][3]
Camera: built-in / optional? Resolution & framerate (verify — marketing often omits real fps)Standard HD camera fitted, 720p[1]Not documented
Calibration Routines & QoL
Assembly level & time from unbox to first printAnycubic claims assembly and first print within 15 minutes[1]Not documented
Materials Support
Officially supported filament listPLA, PETG, TPU 95A - and Anycubic notes TPU 95A cannot be used through the ACE 2 Pro[1]402.5-405 nm photopolymer resin. No closed compatibility list published[2][3]
Noise & Power Consumption
Noise: claimed dB and independently measured dB (distance/method)48 dB or less in standard mode and 45 dB or less in silent print mode - manufacturer figures with no distance or method stated[1]Not documented
Reliability, Support & Ecosystem
Warranty length & support reputation (evidence, not vibes)One year on the complete machine (excluding gifted and second-hand machines), with component warranty periods that vary by part; the period starts on the delivery date and is suspended while a replacement is in transit. Anycubic states it will follow longer local statutory periods where they apply[8]Not documented
Independently Measured Performance
Dimensional accuracy measurements (third-party, with numbers)Not documentedPrinting tolerance +/-0.1 mm for lengths up to 100 mm, +/-0.1% beyond — a manufacturer specification, not an independent measurement[2]
Benchmark print times (source + settings)Anycubic claims a 14-minute Benchy - a manufacturer figure with no slicer settings published, not an independent measurement[1]Not documented
Resin & MSLA
Masking LCDNot documented10.3-inch masking LCD, 7680 x 4320 px (8K), XY pixel pitch 29.6 um (manufacturer specification)[2][3]
Light sourceNot documentedPhotocuring 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 timesNot documented2-3 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 rangeNot documented0.03, 0.05 and 0.1 mm (three discrete settings, not a continuous range)[2][3]
Resin vat & feedingNot documentedResin 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 extractionNot documentedBuilt-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

  1. Anycubic Kobra 4 product page (Specifications table) store.anycubic.com · 2026-08 · vendor
  2. UniFormation GKtwo 10.3" 8K resin printer product page uniformation3d.com · 2026-08 · vendor
  3. UniFormation GKtwo technical data table 3djake.com · 2026-08 · vendor
  4. Anycubic Kobra 4 Shopify product JSON (variant prices and store publish date) store.anycubic.com · 2026-08 · vendor
  5. Anycubic Kobra X product page (Specifications table) store.anycubic.com · 2026-08 · vendor
  6. Anycubic Kobra 3 Combo product page (Specifications table) store.anycubic.com · 2026-08 · vendor
  7. Anycubic Kobra S1 product page (Specifications table) store.anycubic.com · 2026-08 · vendor
  8. Anycubic refund and warranty policy store.anycubic.com · 2026-08 · vendor