3D Printing InfoPrinter comparison
Rat Rig V-Core 4.1 vs Sovol SV08
Compare hardware, build volume, printing specifications, dated prices and sources.
2 selected · all documented properties
Open these two in the interactive comparisonMore Rat Rig V-Core 4.1 comparisonsMore Sovol SV08 comparisons
| Property | Rat Rig V-Core 4.1COREXY | Sovol SV08COREXY |
|---|---|---|
| Identity | ||
| Brand | Rat Rig | Sovol |
| Class | COREXY | COREXY |
| Identity & Market | ||
| Manufacturer & exact marketed model name (verify the exact product identity first) | Rat Rig V-Core 4.1, described by Rat Rig as a large-format open CoreXY 3D printer kit[1] | Sovol SV08 3D Printer[2][3] |
| Street price (USD; dated snapshot per entry) | Not documented | $549.00 on sovol3d.com against a $599.00 compare-at price, in stock, checked Aug 2026 (Canada warehouse quoted as shipping end of September)[2][3] |
| Variants & sibling models — and how to tell them apart (spec-contamination risk) | 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[1] | Sibling SV08 Max is a much larger 500x500x500 machine at $1,099 with a 50 mm3/s flow rate, TMC5160 XY drivers and CAN bus; the SV08 is 30 mm3/s with TMC2209s. Do not carry SV08 Max figures onto the SV08. An eddy-current scanning kit and a 5-inch touchscreen are sold as separate upgrades[3][4][5][2] |
| Market position: superseded? successor announced? | Current revision, replacing the V-Core 4; Rat Rig sells a 4.1 upgrade kit for existing V-Core 4 machines[1] | Not documented |
| Physical & Frame | ||
| Build volume X×Y×Z (mm) — advertised vs actually usable | 300 x 300 x 300, 400 x 400 x 400 or 500 x 500 x 500 mm. Sortable value is the 300 mm kit[1] | 350 x 350 x 345 mm advertised[2][5] |
| Machine footprint (mm) & clearance needed (cable/spool overhang) | 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[1] | 550 x 537 x 575 mm. Sovol's page says this includes screen and filament holder; 3DJake says it excludes the spool holder[2][5] |
| Net weight (kg) | Kit weight 35 kg (300), 45 kg (400), 55 kg (500)[1] | 21.5 kg gross (3DJake). Sovol does not publish a net weight[5] |
| Frame construction & material | 30-series aluminium extrusion; the 4.1 adds a steel X-axis gantry for rigidity[1] | Aluminium-extrusion CoreXY frame; Sovol states the design is inspired by the Voron 2.4 and that software, firmware and hardware are open source with design files on GitHub, with $2 per unit donated to the Voron project[2] |
| Enclosure: open / enclosed; panel material; door/lid | Open frame in the base kit[1] | Open frame as shipped; Sovol sells an enclosure kit separately (an enclosure-kit package is listed for the SV08 Max)[2][4] |
| Kinematics & Motion Hardware | ||
| Kinematics (bedslinger i3 / CoreXY / other) | CoreXY; Hybrid CoreXY and IDEX are configuration options[1] | CoreXY[2] |
| Stepper drivers (exact model e.g. TMC2209; UART/SPI; sensorless homing?) | Not documented | TMC2209[2] |
| Speed & Acceleration | ||
| Max print speed (claimed, mm/s) | Not documented | 700 mm/s maximum (manufacturer claim)[2][5] |
| Max acceleration (claimed, mm/s²) | Size-dependent: 15,000 mm/s2 at 300 mm, 12,000 at 400 mm, 8,000 at 500 mm (manufacturer claims)[1] | 40,000 mm/s2 maximum (manufacturer claim)[2][5] |
| Max volumetric flow claimed (mm³/s) | Not documented | <=30 mm3/s (manufacturer claim)[2][5] |
| Extruder | ||
| Type (direct drive / bowden) & design name | Full-metal skeleton toolhead, new in the 4.1[1] | Planetary-gear direct-drive extruder[2][5] |
| Hotend & Nozzle | ||
| Max nozzle temp claimed AND firmware max temp limit (both values) | 350 °C maximum nozzle temperature (manufacturer claim)[1] | <=300 °C claimed[2][5] |
| Stock nozzle size & sizes included in box | 0.4 mm hardened steel and 0.6 mm included[1] | 0.4 mm included; 0.2, 0.6 and 0.8 mm optional[2] |
| Heated Bed & Surface | ||
| Max bed temp claimed AND firmware limit | 120 °C maximum heatbed temperature (manufacturer claim). The 400 and 500 sizes get 8 mm thick beds in the 4.1[1] | <=100 °C claimed[2][5] |
| Bed surface (material, texture, coating), single/double-sided | Not documented | Powder-coated PEI steel plate[2][5] |
| Leveling & Z-Offset | ||
| Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe) | Not documented | Inductive sensor plus a pressure (load) sensor. An eddy-current scanning kit is sold as an upgrade[2][5][3] |
| Filament Handling & Detection | ||
| Filament runout sensor (type, location) | Not documented | Filament sensor fitted, with filament-runout resume; type and location not published[2][5] |
| Cooling & Air Handling | ||
| Part-cooling fan(s): count, size, ducting design | Improved part cooling, listed by Rat Rig as one of the 4.1 changes[1] | Not documented |
| Electronics & Power | ||
| Host computer (SoC, RAM, storage) if firmware runs on embedded Linux | Not documented | Allwinner H616 quad-core Cortex-A53, 1 GB RAM (512 MB + 512 MB), 8 GB eMMC[2][5] |
| PSU (brand, wattage, rail voltage) | Not documented | Conflicting: Sovol's spec table says 150 W / 24 V, while 3DJake's table gives a rated power of 1000 W at both 110 V and 220 V. The two are only reconcilable if the bed is mains-heated separately from the 24 V logic supply, which Sovol does not state[2][5] |
| Firmware & Openness | ||
| Firmware base & current version (Klipper fork / Marlin fork / proprietary) | RatOS 2.1 (Rat Rig's Klipper distribution)[1] | Klipper. Sovol publishes the design files on GitHub and describes software, firmware and hardware as fully open source[2][5] |
| Connectivity, UI & Camera | ||
| WiFi (band/standard), Ethernet, USB ports, SD/flash-drive | Not documented | Ethernet and Wi-Fi 2.4 GHz, WPA2 only (WPA3 explicitly not supported)[2][5] |
| Camera: built-in / optional? Resolution & framerate (verify — marketing often omits real fps) | Not documented | Camera listed as fitted by Sovol; 3DJake lists a camera as an accessory. Resolution not published[2][5] |
| Calibration Routines & QoL | ||
| Assembly level & time from unbox to first print | Self-assembly kit; the 4.1 ships pre-made cables that need no crimping, with rewritten step-by-step build documentation[1] | Not documented |
| Materials Support | ||
| Officially supported filament list | 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[1] | PLA, PETG, TPU, PETG-CF, ABS and others[2] |
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
- Rat Rig V-Core 4.1 product page ratrig.com · 2026-08 · vendor
- Sovol SV08 3D Printer product page sovol3d.com · 2026-08 · vendor
- Sovol 3D-printer collection product feed (live prices and stock) sovol3d.com · 2026-08 · vendor
- Sovol SV08 Max 3D Printer product page sovol3d.com · 2026-08 · vendor
- Sovol SV08 technical data table 3djake.com · 2026-08 · vendor