3D Printing InfoPrinter comparison
FlashForge AD5X vs QIDI i-Fast
Compare hardware, build volume, printing specifications, dated prices and sources.
2 selected · all documented properties
Open these two in the interactive comparisonMore FlashForge AD5X comparisonsMore QIDI i-Fast comparisons
| Property | FlashForge AD5XCOREXY | QIDI i-FastIDEX |
|---|---|---|
| Identity | ||
| Brand | FlashForge | QIDI |
| Class | COREXY | IDEX |
| Identity & Market | ||
| Manufacturer & exact marketed model name (verify the exact product identity first) | Flashforge AD5X, sold as "AD5X - Multicolor 3D Printer for High-Speed, Full-Color Printing"[1][2] | QIDI Tech i-Fast, also written iFast and "I-Fast"[3][4] |
| Release date (announcement and actual shipping) | Not documented | Not published on the listings checked (Aug 2026)[3][4] |
| Street price (USD; dated snapshot per entry) | $399.00 sale against a $549.00 compare-at price on flashforge.com, in stock, with a further $50 off at checkout, checked Aug 2026. A refurbished AD5X is listed at $315.00[1][2] | $1,899.00 at Top 3D Shop, listed as discontinued with a 5-10 business-day lead time, checked Aug 2026. 3DJake no longer sells it[4][3] |
| Variants & sibling models — and how to tell them apart (spec-contamination risk) | Shares the 220 mm Adventurer chassis with the 5M and 5M Pro but differs on the points that matter: 300 °C nozzle (vs 280 °C), 4-colour IFS unit, NO air filtration, NO auto shutdown, and a 300 mm/s print speed against a 600 mm/s travel speed. 3DJake and eolasprints both describe it as open-frame[1][5][6][7] | Ships with two interchangeable dual-extruder assemblies — a standard dual head and a high-temperature dual head rated to 350 °C. Specifications quoted for one head do not apply to the other. Not to be confused with QIDI's i-Mate or the X-CF Pro[4][3] |
| Market position: superseded? successor announced? | Not documented | Discontinued; QIDI's current line is the Q, Plus and Max series[4][8] |
| Physical & Frame | ||
| Build volume X×Y×Z (mm) — advertised vs actually usable | 220 x 220 x 220 mm advertised[1][5] | 330 x 250 x 320 mm advertised[3][4] |
| Machine footprint (mm) & clearance needed (cable/spool overhang) | Not documented | 710 x 510 x 670 mm[4] |
| Net weight (kg) | Not documented | 33 kg net[4] |
| Frame construction & material | Not documented | Fully assembled enclosed metal-frame machine[3] |
| Enclosure: open / enclosed; panel material; door/lid | Open frame, no enclosure and no air filtration — FlashForge's own table records "Air Filtration: No". Chamber lighting and remote monitoring are listed as expandable options rather than fitted[1][6] | Fully enclosed with a heated chamber[3][4] |
| Kinematics & Motion Hardware | ||
| Kinematics (bedslinger i3 / CoreXY / other) | CoreXY[6] | Dual independent extruders in an enclosed Cartesian gantry[3][4] |
| Speed & Acceleration | ||
| Max print speed (claimed, mm/s) | FlashForge publishes two separate figures: max travel speed 600 mm/s and max print speed 300 mm/s. The 300 mm/s print figure is the one that describes printing[1][5] | 30-150 mm/s print speed range (manufacturer figure — a working range, not a peak marketing number)[4] |
| Max acceleration (claimed, mm/s²) | 20,000 mm/s2 maximum (manufacturer claim)[1][5] | Not documented |
| Extruder | ||
| Type (direct drive / bowden) & design name | Direct drive, one extruder, fed by the 4-colour Intelligent Filament System (IFS)[1] | Direct-drive, two extruders. MK10-style nozzle[3][4] |
| Hotend & Nozzle | ||
| Max nozzle temp claimed AND firmware max temp limit (both values) | 300 °C claimed[1][5] | 350 °C on the high-temperature extruder assembly[3][4] |
| Stock nozzle size & sizes included in box | 0.4 mm default; 0.25, 0.6 and 0.8 mm optional[1][5] | 0.4 mm nozzle diameter[4] |
| Heated Bed & Surface | ||
| Max bed temp claimed AND firmware limit | 110 °C claimed[1][5] | Not documented |
| Bed surface (material, texture, coating), single/double-sided | PEI flexible spring-steel sheet[1][5] | Not documented |
| Leveling & Z-Offset | ||
| Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe) | Automatic levelling; probe technology not named[1][5] | Not documented |
| Filament Handling & Detection | ||
| Filament runout sensor (type, location) | Filament detection fitted; type and location not published[1][5] | Not documented |
| Multi-material/multi-color capability or official upgrade path | Four-colour printing via the integrated Intelligent Filament System (IFS), which handles filament switching[1] | Not documented |
| Electronics & Power | ||
| Input voltage (110/220 V, switch or auto) | Not documented | 110-220 V[4] |
| Total rated power draw | Not documented | 700 W rated[4] |
| Firmware & Openness | ||
| Firmware base & current version (Klipper fork / Marlin fork / proprietary) | Not named by FlashForge; the supported slicers are Orca-Flashforge and OrcaSlicer[1] | Not documented |
| Connectivity, UI & Camera | ||
| WiFi (band/standard), Ethernet, USB ports, SD/flash-drive | USB, Ethernet, Wi-Fi[1][5] | Wi-Fi, LAN, USB flash drive[3][4] |
| Power-Loss & Interruption Recovery | ||
| Power-loss recovery: mechanism (how is state saved? capacitor / eeprom / file on shutdown?) | Power-outage recovery supported; mechanism not published[1][5] | Not documented |
| Materials Support | ||
| Officially supported filament list | PETG, PLA, TPU95A, TPU64D-75D, PLA-CF, PETG-CF[1][5] | Carbon fibre, nylon, PETG, TPU, PC, ABS, PLA[4] |
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
- Flashforge AD5X multicolour 3D printer product page flashforge.com · 2026-08 · vendor
- Flashforge store product feed (live prices and stock) flashforge.com · 2026-08 · vendor
- QIDI Tech i-Fast technical data table 3djake.com · 2026-08 · vendor
- QIDI Tech i-Fast Dual Extruder FDM 3D Printer listing top3dshop.com · 2026-08 · vendor
- FlashForge AD5X technical data table 3djake.com · 2026-08 · vendor
- Flashforge printer buyer's guide, 5M to Creator 5 eolasprints.com · 2026-08 · review
- Flashforge Adventurer 5M Pro product page flashforge.com · 2026-08 · vendor
- QIDI US store full product collection us.qidi3d.com · 2026-08 · vendor