3D Printing InfoPrinter comparison
Anycubic Kobra 2 Max vs Rat Rig V-Core 4.1
Compare hardware, build volume, printing specifications, dated prices and sources.
2 selected · all documented properties
Open these two in the interactive comparisonMore Anycubic Kobra 2 Max comparisonsMore Rat Rig V-Core 4.1 comparisons
| Property | Anycubic Kobra 2 MaxBEDSLINGER | Rat Rig V-Core 4.1COREXY |
|---|---|---|
| Identity | ||
| Brand | Anycubic | Rat Rig |
| Class | BEDSLINGER | COREXY |
| Identity & Market | ||
| Manufacturer & exact marketed model name (verify the exact product identity first) | Anycubic Kobra 2 Max[1] | Rat Rig V-Core 4.1, described by Rat Rig as a large-format open CoreXY 3D printer kit[2] |
| Release date (announcement and actual shipping) | Listed on the Anycubic store from 31 August 2023 (Shopify publish date)[1] | Not documented |
| Street price (USD; dated snapshot per entry) | $639.00 on store.anycubic.com, Aug 2026[1] | Not documented |
| Variants & sibling models — and how to tell them apart (spec-contamination risk) | Largest Kobra 2. Shares the Plus's 90 C bed ceiling and 500/300 mm/s figures but scales to 420 x 420 x 500 mm and 21 kg. Anycubic's on-page comparison is against the older Kobra Max (450 x 400 x 400 mm, Bowden, 180 mm/s), not against the Kobra 2 Plus. Note the newer Kobra 3 Max has the same 420 x 420 x 500 mm volume - build volume alone will not distinguish them[1][3][4] | Three sizes, all at the same base-kit price. Acceleration is the size-dependent figure and the one most often mis-quoted: 15,000 mm/s2 at 300 mm, 12,000 at 400 mm, 8,000 at 500 mm. IDEX is a configuration option and changes the usable area per toolhead (copy mode 150x150x300 at the 300 size, mirror mode 95x95x300). Base kit excludes electronics. Rat Rig prices the base kit only in EUR (EUR 873.90 on sale from EUR 971.00, Aug 2026); no USD list price is published, so no USD street price is recorded here[2] |
| Market position: superseded? successor announced? | Not documented | Current revision, replacing the V-Core 4; Rat Rig sells a 4.1 upgrade kit for existing V-Core 4 machines[2] |
| Physical & Frame | ||
| Build volume X×Y×Z (mm) — advertised vs actually usable | 500 x 420 x 420 mm stated HWD, i.e. 420 x 420 x 500 mm; Anycubic quotes 88.2 L[1] | 300 x 300 x 300, 400 x 400 x 400 or 500 x 500 x 500 mm. Sortable value is the 300 mm kit[2] |
| Machine footprint (mm) & clearance needed (cable/spool overhang) | 740 x 735 x 640 mm stated HWD - footprint about 735 x 640 mm; this is a floor- or bench-dominating machine[1] | 623.2 x 583 x 785 mm (300); 723.2 x 683 x 885 mm (400); 823.2 x 783 x 985 mm (500). Sortable value is the 300 mm kit[2] |
| Net weight (kg) | 21 kg[1] | Kit weight 35 kg (300), 45 kg (400), 55 kg (500)[2] |
| Frame construction & material | Not documented | 30-series aluminium extrusion; the 4.1 adds a steel X-axis gantry for rigidity[2] |
| Enclosure: open / enclosed; panel material; door/lid | Open frame, no enclosure[1] | Open frame in the base kit[2] |
| Kinematics & Motion Hardware | ||
| Kinematics (bedslinger i3 / CoreXY / other) | Cartesian bed-slinger with double metal spindles on X and Y and included belt tensioners[1] | CoreXY; Hybrid CoreXY and IDEX are configuration options[2] |
| Z-axis: leadscrew count & type, sync mechanism, anti-backlash | Dual-motor dual Z axis[1] | Not documented |
| Speed & Acceleration | ||
| Max print speed (claimed, mm/s) | 500 mm/s maximum print speed (Anycubic Lab figure)[1] | Not documented |
| Recommended/typical print speed | 300 mm/s typical print speed (manufacturer figure)[1] | Not documented |
| Max acceleration (claimed, mm/s²) | Not documented | Size-dependent: 15,000 mm/s2 at 300 mm, 12,000 at 400 mm, 8,000 at 500 mm (manufacturer claims)[2] |
| Vibration Compensation / Input Shaping | ||
| Input shaping supported? Implementation (Klipper IS / Marlin ZV / proprietary) | One-click vibration compensation on X/Y plus flow control[1] | Not documented |
| Extruder | ||
| Type (direct drive / bowden) & design name | Direct extruder with double gears[1] | Full-metal skeleton toolhead, new in the 4.1[2] |
| Hotend & Nozzle | ||
| Max nozzle temp claimed AND firmware max temp limit (both values) | 260 C nozzle temperature ceiling; 0.4 mm replaceable nozzle[1] | 350 °C maximum nozzle temperature (manufacturer claim)[2] |
| Stock nozzle size & sizes included in box | Not documented | 0.4 mm hardened steel and 0.6 mm included[2] |
| Heated Bed & Surface | ||
| Max bed temp claimed AND firmware limit | 90 C hotbed temperature ceiling[1] | 120 °C maximum heatbed temperature (manufacturer claim). The 400 and 500 sizes get 8 mm thick beds in the 4.1[2] |
| Bed surface (material, texture, coating), single/double-sided | PEI magnetic spring steel plate, 420 x 420 mm[1] | Not documented |
| Leveling & Z-Offset | ||
| Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe) | Anycubic LeviQ 2.0 automatic levelling, 49-point, with smart Z-offset[1] | Not documented |
| Filament Handling & Detection | ||
| Filament runout sensor (type, location) | Filament detection fitted as default[1] | Not documented |
| Cooling & Air Handling | ||
| Part-cooling fan(s): count, size, ducting design | Not documented | Improved part cooling, listed by Rat Rig as one of the 4.1 changes[2] |
| Electronics & Power | ||
| Host computer (SoC, RAM, storage) if firmware runs on embedded Linux | Cortex-A7 1.2 GHz processor; 8 GB built-in storage[1] | Not documented |
| Firmware & Openness | ||
| Firmware base & current version (Klipper fork / Marlin fork / proprietary) | Not documented | RatOS 2.1 (Rat Rig's Klipper distribution)[2] |
| Calibration Routines & QoL | ||
| Assembly level & time from unbox to first print | Not documented | Self-assembly kit; the 4.1 ships pre-made cables that need no crimping, with rewritten step-by-step build documentation[2] |
| Materials Support | ||
| Officially supported filament list | PLA, ABS, PETG, TPU (Kobra 2 family list)[5] | PLA, PETG, ABS, ASA, TPU, PET, PA, PC, PVA, PLA-CF, PETG-CF, ABS-GF, ASA-CF, PA6-CF, PA6-GF, PAHT-CF, PPA-CF, PET-CF[2] |
| 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[6] | Not documented |
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
- Anycubic Kobra 2 Max store page and Shopify product JSON (Tech Specs block, price, store publish date) store.anycubic.com · 2026-08 · vendor
- Rat Rig V-Core 4.1 product page ratrig.com · 2026-08 · vendor
- Anycubic Kobra 2 Plus store page and Shopify product JSON (Tech Specs block, price, store publish date) store.anycubic.com · 2026-08 · vendor
- Anycubic Kobra 3 Max product page (Specifications table) store.anycubic.com · 2026-08 · vendor
- Anycubic Kobra 2 store page and Shopify product JSON (Tech Specs block, price, store publish date) store.anycubic.com · 2026-08 · vendor
- Anycubic refund and warranty policy store.anycubic.com · 2026-08 · vendor