3D Printing InfoPrinter comparison
Rat Rig V-Core 4 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 comparisonsMore Sovol SV08 comparisons
| Property | Rat Rig V-Core 4COREXY | 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, sold in the US as "RatRig V-Core 4 3D Printer Kit"[1] | Sovol SV08 3D Printer[2][3] |
| Street price (USD; dated snapshot per entry) | $2,319.99 at Fabreeko for the fully-specified US kit (price includes shipping and duty in the continental USA), Batch 4, checked Aug 2026. 300 mm ABS-parts variant in stock, 400 mm down to one unit. Rat Rig's own base kit is priced separately in EUR[1][4] | $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 (300, 400, 500 mm cubes) and three motion configurations: Standard CoreXY, Hybrid CoreXY (+$149.99, adds two motors to Y), and IDEX with two independent toolheads (+$450.00). Superseded by the V-Core 4.1. Raspberry Pi and enclosure panels are not included[1][4] | 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][5][6][2] |
| Market position: superseded? successor announced? | Superseded by the V-Core 4.1, which adds a steel X gantry, a full-metal toolhead, improved part cooling, 8 mm beds on the 400 and 500 sizes and pre-made cables. Rat Rig sells a 4.1 upgrade kit for existing V-Core 4 owners[4] | 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][4] | 350 x 350 x 345 mm advertised[2][6] |
| Machine footprint (mm) & clearance needed (cable/spool overhang) | Not documented | 550 x 537 x 575 mm. Sovol's page says this includes screen and filament holder; 3DJake says it excludes the spool holder[2][6] |
| Net weight (kg) | Not documented | 21.5 kg gross (3DJake). Sovol does not publish a net weight[6] |
| Frame construction & material | 30-series aluminium extrusion with printed ABS structural parts[1][4] | 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 by default; enclosure panels sold separately[1] | Open frame as shipped; Sovol sells an enclosure kit separately (an enclosure-kit package is listed for the SV08 Max)[2][5] |
| Kinematics & Motion Hardware | ||
| Kinematics (bedslinger i3 / CoreXY / other) | CoreXY, or Hybrid CoreXY, or Hybrid CoreXY IDEX depending on the configuration ordered[1] | CoreXY[2] |
| Stepper drivers (exact model e.g. TMC2209; UART/SPI; sensorless homing?) | TMC2209[1] | TMC2209[2] |
| Speed & Acceleration | ||
| Max print speed (claimed, mm/s) | Not documented | 700 mm/s maximum (manufacturer claim)[2][6] |
| Max acceleration (claimed, mm/s²) | Not documented | 40,000 mm/s2 maximum (manufacturer claim)[2][6] |
| Max volumetric flow claimed (mm³/s) | Not documented | <=30 mm3/s (manufacturer claim)[2][6] |
| Extruder | ||
| Type (direct drive / bowden) & design name | LDO Orbiter 2.0 direct-drive extruder[1] | Planetary-gear direct-drive extruder[2][6] |
| Hotend & Nozzle | ||
| Hotend design (proprietary/standard; quick-swap mechanism?) | Phaetus Rapido 2.0 UHF[1] | Not documented |
| Max nozzle temp claimed AND firmware max temp limit (both values) | Not documented | <=300 °C claimed[2][6] |
| Stock nozzle size & sizes included in box | Not documented | 0.4 mm included; 0.2, 0.6 and 0.8 mm optional[2] |
| Heated Bed & Surface | ||
| Max bed temp claimed AND firmware limit | Not documented | <=100 °C claimed[2][6] |
| Bed surface (material, texture, coating), single/double-sided | Keenovo silicone bed heater[1] | Powder-coated PEI steel plate[2][6] |
| Leveling & Z-Offset | ||
| Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe) | Beacon eddy-current probe[1] | Inductive sensor plus a pressure (load) sensor. An eddy-current scanning kit is sold as an upgrade[2][6][3] |
| Filament Handling & Detection | ||
| Filament runout sensor (type, location) | Not documented | Filament sensor fitted, with filament-runout resume; type and location not published[2][6] |
| Cooling & Air Handling | ||
| Part-cooling fan(s): count, size, ducting design | Nidec 4028 part-cooling fan[1] | Not documented |
| Electronics & Power | ||
| Mainboard model & MCU (exact chip markings if teardowns exist) | BigTreeTech Octopus[1] | Not documented |
| 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][6] |
| 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][6] |
| Firmware & Openness | ||
| Firmware base & current version (Klipper fork / Marlin fork / proprietary) | RatOS, Rat Rig's Klipper distribution[4] | Klipper. Sovol publishes the design files on GitHub and describes software, firmware and hardware as fully open source[2][6] |
| 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][6] |
| 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][6] |
| Calibration Routines & QoL | ||
| Assembly level & time from unbox to first print | Self-assembly kit; Raspberry Pi and enclosure panels sourced separately[1] | Not documented |
| Materials Support | ||
| Officially supported filament list | Not documented | 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
- RatRig V-Core 4 kit (US distributor listing) fabreeko.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
- Rat Rig V-Core 4.1 product page ratrig.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