Build volume
330 x 250 x 320 mm advertised
Advertised dimensions; check usable space and variants.
Sources & dates
- QIDI Tech i-Fast technical data table · 2026-08 · vendor
- QIDI Tech i-Fast Dual Extruder FDM 3D Printer listing · 2026-08 · vendor
Discontinued enclosed dual-extruder machine with a 60 °C heated chamber and two swappable extruder assemblies.

330 x 250 x 320 mm advertised
Advertised dimensions; check usable space and variants.
350 °C on the high-temperature extruder assembly
Published limits; hardware and firmware limits may differ.
$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
Dated listing, not a live offer. Read the configuration and region.
Understand the hardware, explore compatible changes and find a diagnostic starting point when something goes wrong. Expand the specification sections for every recorded value, condition and original reference.
Dimensions, construction and the hardware that moves the print.
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Manufacturer & exact marketed model name (verify the exact product identity first) | QIDI Tech i-Fast, also written iFast and "I-Fast" | 2 sources
|
| Release date (announcement and actual shipping) | Not published on the listings checked (Aug 2026) | 2 sources
|
| Street price (USD; dated snapshot per entry) | $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 | 2 sources
|
| Variants & sibling models — and how to tell them apart (spec-contamination risk) | 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 | 2 sources
|
| Market position: superseded? successor announced? | Discontinued; QIDI's current line is the Q, Plus and Max series | 2 sources
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Build volume X×Y×Z (mm) — advertised vs actually usable | 330 x 250 x 320 mm advertised | 2 sources
|
| Machine footprint (mm) & clearance needed (cable/spool overhang) | 710 x 510 x 670 mm | 1 source
|
| Net weight (kg) | 33 kg net | 1 source
|
| Frame construction & material | Fully assembled enclosed metal-frame machine | 1 source
|
| Enclosure: open / enclosed; panel material; door/lid | Fully enclosed with a heated chamber | 2 sources
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Kinematics (bedslinger i3 / CoreXY / other) | Dual independent extruders in an enclosed Cartesian gantry | 2 sources
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Max print speed (claimed, mm/s) | 30-150 mm/s print speed range (manufacturer figure — a working range, not a peak marketing number) | 1 source
|
Extrusion, heating, leveling and material handling.
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Type (direct drive / bowden) & design name | Direct-drive, two extruders. MK10-style nozzle | 2 sources
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Max nozzle temp claimed AND firmware max temp limit (both values) | 350 °C on the high-temperature extruder assembly | 2 sources
|
| Stock nozzle size & sizes included in box | 0.4 mm nozzle diameter | 1 source
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Officially supported filament list | Carbon fibre, nylon, PETG, TPU, PC, ABS, PLA | 1 source
|
Firmware, controls, connections and calibration.
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Input voltage (110/220 V, switch or auto) | 110-220 V | 1 source
|
| Total rated power draw | 700 W rated | 1 source
|
QIDI explicitly includes i-Fast in the QIDI Print compatibility list, while separating that slicer from its newer high-speed printers. Confirm the selected printer profile when a transferred job behaves incorrectly.
Applies to: i-Fast; the manufacturer lists QIDI Print 6.5.4 for this legacy series, not the X3-generation workflow.
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| WiFi (band/standard), Ethernet, USB ports, SD/flash-drive | Wi-Fi, LAN, USB flash drive | 2 sources
|
This guide presents the catalog’s sourced record for this exact model. Source dates belong to each reference; a page update does not mean every specification has been rechecked.
Prices are dated listing snapshots, with configuration, regional and sale conditions. They are not current offers. Unknown values remain unfilled.
Firmware, variants and available accessories can change. Read the original reference before making a purchase or planning a process.
Firmware, modifications and troubleshooting links are checked against the model and stated hardware or firmware revision. A creator’s compatibility claim is not a fit test by this site. Official troubleshooting describes a diagnostic route; individual reports do not establish a failure rate.
This review did not verify firmware customization or update guidance, printable modifications, hardware upgrades for this exact model. That is a research gap, not a claim that none exist.