3D Printing InfoPrinter comparison
QIDI X-Max 3 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 QIDI X-Max 3 comparisonsMore Rat Rig V-Core 4.1 comparisons
| Property | QIDI X-Max 3COREXY | Rat Rig V-Core 4.1COREXY |
|---|---|---|
| Identity | ||
| Brand | QIDI | Rat Rig |
| Class | COREXY | COREXY |
| Identity & Market | ||
| Manufacturer & exact marketed model name (verify the exact product identity first) | QIDI X-Max 3, listed by QIDI as "Qidi Tech X-Max 3 3D Printer" and in navigation as X-Max3[1][2] | Rat Rig V-Core 4.1, described by Rat Rig as a large-format open CoreXY 3D printer kit[3] |
| Release date (announcement and actual shipping) | Not published by QIDI; the product page carries a discontinuation notice rather than a launch date (checked Aug 2026)[1] | Not documented |
| Street price (USD; dated snapshot per entry) | $899.00 (from a $999.00 sale reference) on us.qidi3d.com but marked Sold Out and discontinued, checked Aug 2026. 3D Printers Online Store lists $1,099 USD, also out of stock[1][4] | Not documented |
| Variants & sibling models — and how to tell them apart (spec-contamination risk) | Same-generation siblings X-Plus 3 (280x280x270, 500 mm/s, 800 W) and X-Smart 3 (175x180x170, no chamber heating, 300 °C, 350 W). All three share the Cortex-A53 1.5 GHz / 1 GB DDR3 / 8 GB eMMC control board, so shared-board specs are not evidence of shared print specs. Replaced by the Max4[2][5][6][7] | 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[3] |
| Market position: superseded? successor announced? | Discontinued and out of production; QIDI directs buyers to the Max4[1] | Current revision, replacing the V-Core 4; Rat Rig sells a 4.1 upgrade kit for existing V-Core 4 machines[3] |
| Physical & Frame | ||
| Build volume X×Y×Z (mm) — advertised vs actually usable | 325 x 325 x 315 mm advertised[1][2][4] | 300 x 300 x 300, 400 x 400 x 400 or 500 x 500 x 500 mm. Sortable value is the 300 mm kit[3] |
| Machine footprint (mm) & clearance needed (cable/spool overhang) | 553 x 553 x 601 mm[2][4] | 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[3] |
| Net weight (kg) | 30.2 kg net[2][4] | Kit weight 35 kg (300), 45 kg (400), 55 kg (500)[3] |
| Frame construction & material | Enclosed CoreXY chassis, fully assembled from the factory. QIDI does not publish a frame-material breakdown[2] | 30-series aluminium extrusion; the 4.1 adds a steel X-axis gantry for rigidity[3] |
| Enclosure: open / enclosed; panel material; door/lid | Fully enclosed, with a chamber circulation blower and activated-carbon air filter[2] | Open frame in the base kit[3] |
| Passive chamber temperature reached (if enclosed; measured values preferred) | 65 °C maximum, independent chamber heating (manufacturer claim)[1][2] | Not documented |
| Kinematics & Motion Hardware | ||
| Kinematics (bedslinger i3 / CoreXY / other) | CoreXY[2] | CoreXY; Hybrid CoreXY and IDEX are configuration options[3] |
| X-axis guide type (rods / linear rails / V-wheels; size) | Linear optical axis (polished steel rod) of high-strength steel[2] | Not documented |
| Z-axis: leadscrew count & type, sync mechanism, anti-backlash | Double Z axis[2] | Not documented |
| Speed & Acceleration | ||
| Max print speed (claimed, mm/s) | <=600 mm/s (manufacturer claim)[1][2][4] | Not documented |
| Max acceleration (claimed, mm/s²) | 20,000 mm/s2 (manufacturer claim)[1] | Size-dependent: 15,000 mm/s2 at 300 mm, 12,000 at 400 mm, 8,000 at 500 mm (manufacturer claims)[3] |
| Max volumetric flow claimed (mm³/s) | 35 mm3/s extruder flow (manufacturer claim)[2] | Not documented |
| Extruder | ||
| Type (direct drive / bowden) & design name | High-flow direct-drive extruder; QIDI states a 9.5:1 gear ratio for this model[1][2] | Full-metal skeleton toolhead, new in the 4.1[3] |
| Gear ratio & drive gear material | 9.5:1[1] | Not documented |
| Hotend & Nozzle | ||
| Hotend design (proprietary/standard; quick-swap mechanism?) | Ceramic heating core. Two interchangeable nozzle-head sets shipped: copper alloy for standard materials, hardened steel for abrasives. 0.4 mm stock, 0.2/0.6/0.8 mm optional[1][2] | Not documented |
| Max nozzle temp claimed AND firmware max temp limit (both values) | <=350 °C claimed[1][2][4] | 350 °C maximum nozzle temperature (manufacturer claim)[3] |
| Stock nozzle size & sizes included in box | Not documented | 0.4 mm hardened steel and 0.6 mm included[3] |
| Heated Bed & Surface | ||
| Max bed temp claimed AND firmware limit | <=120 °C claimed[2][4] | 120 °C maximum heatbed temperature (manufacturer claim). The 400 and 500 sizes get 8 mm thick beds in the 4.1[3] |
| Bed surface (material, texture, coating), single/double-sided | Double-sided flexible magnetic plate (QIDI's "HF" plate)[1][2] | Not documented |
| Leveling & Z-Offset | ||
| Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe) | Automatic levelling via Klipper adaptive meshing; probe technology not named by QIDI[1] | Not documented |
| Filament Handling & Detection | ||
| Filament runout sensor (type, location) | Filament detection fitted; type and location not published[2] | 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[3] |
| Auxiliary part-cooling fan? | Additional (auxiliary) cooling fan fitted[2] | Not documented |
| Chamber/exhaust fan & filtration (activated carbon / HEPA) | Chamber circulation blower with activated-carbon air filter[2] | Not documented |
| Electronics & Power | ||
| Host computer (SoC, RAM, storage) if firmware runs on embedded Linux | Cortex-A53 64-bit at 1.5 GHz, 1 GB DDR3, 8 GB eMMC[1][2] | Not documented |
| Input voltage (110/220 V, switch or auto) | 100-240 VAC, 50/60 Hz[2] | Not documented |
| Total rated power draw | 900 W rated[2][4] | Not documented |
| Firmware & Openness | ||
| Firmware base & current version (Klipper fork / Marlin fork / proprietary) | Klipper with the Fluidd web console. Fork and version not published[1] | RatOS 2.1 (Rat Rig's Klipper distribution)[3] |
| Connectivity, UI & Camera | ||
| Display: size, type, touch? | 5-inch touchscreen, 800 x 480[2] | Not documented |
| WiFi (band/standard), Ethernet, USB ports, SD/flash-drive | Wi-Fi (QIDI states 150M 2.4G), Ethernet, USB flash drive[2] | 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[3] |
| Materials Support | ||
| Officially supported filament list | ABS, PLA, PETG, TPU, nylon, carbon fibre, PC[4] | 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[3] |
| Reliability, Support & Ecosystem | ||
| Warranty length & support reputation (evidence, not vibes) | 1-year coverage[1] | 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
- QIDI X-Max 3 product page (US store) us.qidi3d.com · 2026-08 · vendor
- QIDI Tech X-Max 3 technical data table 3djake.com · 2026-08 · vendor
- Rat Rig V-Core 4.1 product page ratrig.com · 2026-08 · vendor
- Qidi Tech X-Max 3 FDM 3D Printer listing 3dprintersonlinestore.com · 2026-08 · vendor
- QIDI Tech X-Plus 3 technical data table 3djake.com · 2026-08 · vendor
- QIDI Tech X-Smart 3 technical data table 3djake.com · 2026-08 · vendor
- QIDI Max4 product page (US store) us.qidi3d.com · 2026-08 · vendor