3D Printing InfoPrinter comparison
QIDI Q1 Pro vs Rat Rig V-Core 4
Compare hardware, build volume, printing specifications, dated prices and sources.
2 selected · all documented properties
Open these two in the interactive comparisonMore QIDI Q1 Pro comparisonsMore Rat Rig V-Core 4 comparisons
| Property | QIDI Q1 ProCOREXY | Rat Rig V-Core 4COREXY |
|---|---|---|
| Identity | ||
| Brand | QIDI | Rat Rig |
| Class | COREXY | COREXY |
| Identity & Market | ||
| Manufacturer & exact marketed model name (verify the exact product identity first) | QIDI Q1 Pro, listed by QIDI as "Q1 Pro 3D Printer". QIDI traded as Qidi Tech until end-2024[1] | Rat Rig V-Core 4, sold in the US as "RatRig V-Core 4 3D Printer Kit"[2] |
| Release date (announcement and actual shipping) | Not stated on QIDI's own product page; the page now carries a discontinuation notice instead of a launch date (checked Aug 2026)[1][3] | Not documented |
| Street price (USD; dated snapshot per entry) | $499.00 on both qidi3d.com and us.qidi3d.com, checked Aug 2026 — but the listing is marked Sold Out and the page states "This model has been discontinued". qidi3d.com shows it against a $599.00 regular price; the US store shows compare-at $499.00[1][3] | $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[2][4] |
| Variants & sibling models — and how to tell them apart (spec-contamination risk) | Succeeded by the QIDI Q2, which QIDI's own comparison on the Q1 Pro page distinguishes as 270x270x256 mm (vs 245x245x240), 370 °C hotend (vs 350 °C) and 65 °C chamber (vs 60 °C). Do not read Q2 figures onto the Q1 Pro[1][3] | 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 Superseded by the V-Core 4.1.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[2][4] |
| Market position: superseded? successor announced? | Discontinued and out of production; QIDI states spare parts and support for existing owners remain available. Replaced by the Q2[1][3] | Superseded by the V-Core 4.1, which adds a steel X gantry, a full-metal toolhead, improved part cooling, 8 mm beds on the 400 and 500 sizes and pre-made cables.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] |
| Physical & Frame | ||
| Build volume X×Y×Z (mm) — advertised vs actually usable | 245 x 245 x 240 mm advertised (QIDI). No independently measured usable envelope found[1][5] | 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][4] |
| Machine footprint (mm) & clearance needed (cable/spool overhang) | 477 x 467 x 489 mm machine dimensions (QIDI)[1][5] | Not documented |
| Net weight (kg) | 17 kg net, 20.3 kg gross (QIDI). 3DJake lists the 20.3 kg figure as gross weight[1][5] | Not documented |
| Frame construction & material | Metal CoreXY motion frame with panelled enclosure; QIDI publishes no frame-material breakdown for this model[1] | 30-series aluminium extrusion with printed ABS structural parts[2][4] |
| Enclosure: open / enclosed; panel material; door/lid | Fully enclosed with independent chamber heating to 60 °C; QIDI does not publish the panel materials for this model[1][5] | Open by default; enclosure panels sold separately[2] |
| Passive chamber temperature reached (if enclosed; measured values preferred) | 60 °C, actively heated (manufacturer claim — this is a heater setpoint, not a measured passive figure)[1][5] | Not documented |
| Kinematics & Motion Hardware | ||
| Kinematics (bedslinger i3 / CoreXY / other) | CoreXY[5] | CoreXY, or Hybrid CoreXY, or Hybrid CoreXY IDEX depending on the configuration ordered[2] |
| X-axis guide type (rods / linear rails / V-wheels; size) | 10 mm linear steel rods with automatically tensioned belt (manufacturer description)[5] | Not documented |
| Z-axis: leadscrew count & type, sync mechanism, anti-backlash | Independent dual Z lead-screw motors[5] | Not documented |
| Stepper drivers (exact model e.g. TMC2209; UART/SPI; sensorless homing?) | Not documented | TMC2209[2] |
| Speed & Acceleration | ||
| Max print speed (claimed, mm/s) | 600 mm/s, worded by QIDI as maximum tool-head speed (manufacturer claim, not a sustained printing speed)[1][5] | Not documented |
| Max acceleration (claimed, mm/s²) | <=20,000 mm/s2 (manufacturer claim)[1][5] | Not documented |
| Extruder | ||
| Type (direct drive / bowden) & design name | Direct-drive extruder with hardened steel gears[1][5] | LDO Orbiter 2.0 direct-drive extruder[2] |
| Hotend & Nozzle | ||
| Hotend design (proprietary/standard; quick-swap mechanism?) | Tri-metal hotend with a ceramic heater plate and a bimetal nozzle, 0.4 mm standard[1][5] | Phaetus Rapido 2.0 UHF[2] |
| Max nozzle temp claimed AND firmware max temp limit (both values) | <=350 °C claimed. No firmware max_temp verified for this model[1][5] | Not documented |
| Heated Bed & Surface | ||
| Max bed temp claimed AND firmware limit | <=120 °C claimed. No firmware limit verified for this model[1][5] | Not documented |
| Bed surface (material, texture, coating), single/double-sided | Double-sided textured PEI plate on an aluminium substrate bed[1][5] | Keenovo silicone bed heater[2] |
| Leveling & Z-Offset | ||
| Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe) | Automatic levelling; QIDI markets it as "hands-free automatic levelling" with dual sensors, without naming the probe technology[1] | Beacon eddy-current probe[2] |
| Filament Handling & Detection | ||
| Filament runout sensor (type, location) | Filament run-out sensor fitted; QIDI also lists filament tangle detection without describing the mechanism[5] | Not documented |
| Cooling & Air Handling | ||
| Part-cooling fan(s): count, size, ducting design | Auxiliary part-cooling fan plus a chamber circulation fan (fan count and duct design not published)[5] | Nidec 4028 part-cooling fan[2] |
| Electronics & Power | ||
| Mainboard model & MCU (exact chip markings if teardowns exist) | Not documented | BigTreeTech Octopus[2] |
| Input voltage (110/220 V, switch or auto) | 100-240 VAC, 50/60 Hz[5] | Not documented |
| Total rated power draw | 350 W plus 300 W for chamber heating (rated)[1][5] | Not documented |
| Firmware & Openness | ||
| Firmware base & current version (Klipper fork / Marlin fork / proprietary) | Klipper, running on a 64-bit processor per QIDI. Exact fork and version not published on the product page[1] | RatOS, Rat Rig's Klipper distribution[4] |
| Connectivity, UI & Camera | ||
| Display: size, type, touch? | 4.3-inch touchscreen, 272 x 480[1][5] | Not documented |
| WiFi (band/standard), Ethernet, USB ports, SD/flash-drive | Wi-Fi 6 (QIDI states "150M 2.4G") and USB 2.0. No Ethernet listed for this model[1][5] | Not documented |
| Camera: built-in / optional? Resolution & framerate (verify — marketing often omits real fps) | Built-in camera, up to 1080p, timelapse supported. Framerate not published[1][5] | Not documented |
| Calibration Routines & QoL | ||
| Assembly level & time from unbox to first print | Ships fully assembled[1] | Self-assembly kit; Raspberry Pi and enclosure panels sourced separately[2] |
| Power-Loss & Interruption Recovery | ||
| Power-loss recovery: mechanism (how is state saved? capacitor / eeprom / file on shutdown?) | Power-loss recovery listed as a feature; mechanism not published[5] | Not documented |
| Materials Support | ||
| Officially supported filament list | QIDI lists compatibility with common filaments; storage 32 GB eMMC. No per-material list published on the current page beyond the general claim[1] | Not documented |
| Reliability, Support & Ecosystem | ||
| Warranty length & support reputation (evidence, not vibes) | 1-year coverage, 14-day no-reason return, lifetime tech guidance (QIDI's standard terms as shown on its store)[6] | 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 Q1 Pro product page (global store) qidi3d.com · 2026-08 · vendor
- RatRig V-Core 4 kit (US distributor listing) fabreeko.com · 2026-08 · vendor
- QIDI Q1 Pro product page (US store) us.qidi3d.com · 2026-08 · vendor
- Rat Rig V-Core 4.1 product page ratrig.com · 2026-08 · vendor
- QIDI Tech Q1 Pro technical data table 3djake.com · 2026-08 · vendor
- QIDI Max4 product page (US store) us.qidi3d.com · 2026-08 · vendor