3D Printing InfoPrinter comparison
Rat Rig V-Core 4.1 vs UltiMaker S5
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 UltiMaker S5 comparisons
| Property | Rat Rig V-Core 4.1COREXY | UltiMaker S5INDUSTRIAL |
|---|---|---|
| Identity | ||
| Brand | Rat Rig | UltiMaker |
| Class | COREXY | INDUSTRIAL |
| 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] | UltiMaker S5 3D Printer[2] |
| Street price (USD; dated snapshot per entry) | Not documented | Starting at $6,950 at MatterHackers, in stock, checked Aug 2026[2] |
| 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] | Three generations share the same 330 x 240 x 300 mm envelope and are easy to confuse: S5 (280 °C nozzle, glass bed to 140 °C, 4.7-inch screen), S7 (PEI-coated flexible plate, Wi-Fi 5 GHz added, $5,999) and S8 (340 °C, 500 mm/s, 50,000 mm/s2, PEI plate to 120 °C). Build-volume figures alone will not tell them apart[2][3][4] |
| Market position: superseded?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 | Current revision, replacing the V-Core 4; Rat Rig sells a 4.1 upgrade kit for existing V-Core 4 machines[1] | Superseded by the S7 and then the S8, but still sold[2][3][4] |
| 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] | 330 x 240 x 300 mm[2] |
| 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] | 495 x 585 x 780 mm assembled with the spool holder[2] |
| Net weight (kg) | Kit weight 35 kg (300), 45 kg (400), 55 kg (500)[1] | 20.6 kg[2] |
| Frame construction & material | 30-series aluminium extrusion; the 4.1 adds a steel X-axis gantry for rigidity[1] | Fully assembled professional chassis[2] |
| Enclosure: open / enclosed; panel material; door/lid | Open frame in the base kit[1] | Not documented |
| Kinematics & Motion Hardware | ||
| Kinematics (bedslinger i3 / CoreXY / other) | CoreXY; Hybrid CoreXY and IDEX are configuration options[1] | Dual-extrusion gantry with an articulating nozzle-lifting print head. UltiMaker does not publish the kinematic layout in this spec table[2] |
| Speed & Acceleration | ||
| 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] | Not documented |
| Max volumetric flow claimed (mm³/s) | Not documented | Build speed under 24 mm3/s (manufacturer figure)[2] |
| Extruder | ||
| Type (direct drive / bowden) & design name | Full-metal skeleton toolhead, new in the 4.1[1] | Dual-geared feeder rated for advanced composites; dual extrusion with swappable print cores[2] |
| Filament diameter | Not documented | 2.85 mm[2] |
| Hotend & Nozzle | ||
| Max nozzle temp claimed AND firmware max temp limit (both values) | 350 °C maximum nozzle temperature (manufacturer claim)[1] | 180-280 °C nozzle temperature range; heat-up under 2 minutes[2] |
| Stock nozzle size & sizes included in box | 0.4 mm hardened steel and 0.6 mm included[1] | 0.4 mm standard; 0.25, 0.6 and 0.8 mm available[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] | Heated glass bed, 20-140 °C[2] |
| Bed surface (material, texture, coating), single/double-sided | Not documented | Heated glass build plate[2] |
| Leveling & Z-Offset | ||
| Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe) | Not documented | Automatic advanced levelling; probe technology not stated in this table[2] |
| 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 | ||
| Total rated power draw | Not documented | 500 W maximum power output[2] |
| Firmware & Openness | ||
| Firmware base & current version (Klipper fork / Marlin fork / proprietary) | RatOS 2.1 (Rat Rig's Klipper distribution)[1] | Not published; print preparation is UltiMaker Cura and UltiMaker Essentials[2] |
| Connectivity, UI & Camera | ||
| Display: size, type, touch? | Not documented | 4.7-inch colour touchscreen[2] |
| WiFi (band/standard), Ethernet, USB ports, SD/flash-drive | Not documented | Wi-Fi, Ethernet, USB[2] |
| 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] | Not documented |
| Noise & Power Consumption | ||
| Noise: claimed dB and independently measured dB (distance/method) | Not documented | Under 50 dBA operating sound, manufacturer figure. No independent measurement; distance and method not stated[2] |
| Independently Measured Performance | ||
| Dimensional accuracy measurements (third-party, with numbers) | Not documented | XYZ resolution 6.9 / 6.9 / 2.5 micron (manufacturer specification, not an independent measurement)[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
- UltiMaker S5 3D Printer listing matterhackers.com · 2026-08 · vendor
- UltiMaker S7 product listing shop3duniverse.com · 2026-08 · vendor
- UltiMaker S8 3D Printer listing matterhackers.com · 2026-08 · vendor