3D Printing InfoPrinter comparison
Anycubic Kobra 3 Combo 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 3 Combo comparisonsMore Rat Rig V-Core 4.1 comparisons
| Property | Anycubic Kobra 3 ComboBEDSLINGER | 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 3 Combo - the Kobra 3 sold together with the ACE Pro filament unit[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 30 April 2024 (Shopify publish date)[3] | Not documented |
| Street price (USD; dated snapshot per entry) | $329.00 with a US plug on store.anycubic.com, Aug 2026 ($355.00 for the EU plug variant)[3] | Not documented |
| Variants & sibling models — and how to tell them apart (spec-contamination risk) | Two things to watch here. First, the Combo is printer plus ACE Pro; the ACE Pro alone weighs 4.6 kg and measures 366 x 283 x 235 mm, so plan bench space for both. Second, Anycubic's own specification table on this page mixes generations - the weight row reads "Kobra 3 V2 - 9.2kg" while the package row reads "Kobra 3 - 12kg", and a separate Kobra 3 V2 Combo product is listed at the same price. Treat any single figure from this page as needing confirmation against the exact SKU[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| Market position: superseded?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 | 250 x 250 x 260 mm; Anycubic quotes a 16.25 L maximum printing volume[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) | 452.9 x 504.7 x 483 mm for the printer; the ACE Pro is a separate 365.94 x 282.84 x 234.5 mm box[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) | Anycubic's table gives "Kobra 3 V2 - 9.2kg" for the machine weight and "Kobra 3 - 12kg" for the package weight, plus 4.6 kg for the ACE Pro - the two rows do not refer to the same thing, so treat 9.2 kg as the machine and 12 kg as shipping weight[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) | Anycubic's specification table gives the construction as "Gantry System" - it is a bed-slinger, not the CoreXY layout used by the Kobra S1 series[1][5] | CoreXY; Hybrid CoreXY and IDEX are configuration options[2] |
| Speed & Acceleration | ||
| Max print speed (claimed, mm/s) | 600 mm/s maximum print speed (manufacturer claim), with 300 mm/s recommended[1] | Not documented |
| Recommended/typical print speed | 300 mm/s recommended print speed (manufacturer figure)[1] | Not documented |
| Max acceleration (claimed, mm/s²) | 20000 mm/s2 maximum acceleration, 10000 mm/s2 recommended (manufacturer claims)[1] | Size-dependent: 15,000 mm/s2 at 300 mm, 12,000 at 400 mm, 8,000 at 500 mm (manufacturer claims)[2] |
| Extruder | ||
| Type (direct drive / bowden) & design name | Direct drive (Anycubic's term is "short distance extrusion")[1] | Full-metal skeleton toolhead, new in the 4.1[2] |
| Hotend & Nozzle | ||
| Hotend design (proprietary/standard; quick-swap mechanism?) | 300 C quick-release hotend; 0.4 mm standard nozzle, expandable to 0.6 and 0.8 mm[1] | Not documented |
| Max nozzle temp claimed AND firmware max temp limit (both values) | 300 C maximum nozzle temperature (manufacturer figure)[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 | 110 C maximum hotbed temperature on a PEI spring steel build plate[1] | 120 °C maximum heatbed temperature (manufacturer claim). The 400 and 500 sizes get 8 mm thick beds in the 4.1[2] |
| Leveling & Z-Offset | ||
| Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe) | LeviQ 3.0 auto-levelling with Z-offset, plus area levelling[1] | Not documented |
| Filament Handling & Detection | ||
| Filament runout sensor (type, location) | Filament detection with auto resume, filament entanglement detection, nozzle clog detection and power-loss resume[1] | Not documented |
| Multi-material/multi-color capability or official upgrade path | 4-colour printing with one ACE Pro, or up to 8 colours with two units[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] |
| Firmware & Openness | ||
| Firmware base & current version (Klipper fork / Marlin fork / proprietary) | Kobra OS. Anycubic's slicer, Anycubic Slicer Next, is stated to be built on the open-source Orca slicer[1] | RatOS 2.1 (Rat Rig's Klipper distribution)[2] |
| Connectivity, UI & Camera | ||
| Display: size, type, touch? | 4.3-inch capacitive touchscreen with a 30-60 degree adjustable tilt[1] | Not documented |
| On-device UI capabilities (model preview, per-object controls, etc.) | Touchscreen plus Anycubic Slicer Next, the Anycubic app and USB (print only); AI spaghetti detection and object skip are supported[1] | Not documented |
| WiFi (band/standard), Ethernet, USB ports, SD/flash-drive | Printer UI, slicing software, Anycubic app and USB drive (print only)[1] | Not documented |
| Camera: built-in / optional? Resolution & framerate (verify — marketing often omits real fps) | Camera is optional on the Kobra 3 - a 720p HD unit, not fitted as standard, unlike the Kobra S1, Kobra 4 and Kobra X[1][5][6] | Not documented |
| 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, PETG and TPU, and Anycubic notes TPU is not compatible with the ACE Pro multi-material unit[1] | 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[7] | 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 3 Combo product page (Specifications table) store.anycubic.com · 2026-08 · vendor
- Rat Rig V-Core 4.1 product page ratrig.com · 2026-08 · vendor
- Anycubic Kobra 3 Combo Shopify product JSON (variant prices and store publish date) store.anycubic.com · 2026-08 · vendor
- Anycubic store 3D printers collection (current line-up and headline prices, Aug 2026) store.anycubic.com · 2026-08 · vendor
- Anycubic Kobra S1 product page (Specifications table) store.anycubic.com · 2026-08 · vendor
- Anycubic Kobra 4 product page (Specifications table) store.anycubic.com · 2026-08 · vendor
- Anycubic refund and warranty policy store.anycubic.com · 2026-08 · vendor