3D Printing Info

Printer comparison

Markforged Onyx One vs QIDI i-Fast

Compare hardware, build volume, printing specifications, dated prices and sources.

2 selected · all documented properties

Markforged Onyx One vs QIDI i-Fast — documented properties and sources
PropertyMarkforged Onyx OneINDUSTRIALQIDI i-FastIDEX
Identity
BrandMarkforgedQIDI
ClassINDUSTRIALIDEX
Identity & Market
Manufacturer & exact marketed model name (verify the exact product identity first)Markforged Onyx One Desktop 3D Printer[1]QIDI Tech i-Fast, also written iFast and "I-Fast"[2][3]
Release date (announcement and actual shipping)Not documentedNot published on the listings checked (Aug 2026)[2][3]
Street price (USD; dated snapshot per entry)Not documented$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[3][2]
Variants & sibling models — and how to tell them apart (spec-contamination risk)The defining limitation: the Onyx One prints Onyx only and has NO continuous-fibre reinforcement. The Onyx Pro adds fibreglass, the Mark Two adds the full continuous-fibre range, and the X7 is a much larger industrial machine. Onyx One specifications must never be read from Mark Two or X-series material lists[1][4][5]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[3][2]
Market position: superseded? successor announced?Not documentedDiscontinued; QIDI's current line is the Q, Plus and Max series[3][6]
Physical & Frame
Build volume X×Y×Z (mm) — advertised vs actually usable12.6 x 5.2 x 6.1 in (approximately 320 x 132 x 155 mm)[1]330 x 250 x 320 mm advertised[2][3]
Machine footprint (mm) & clearance needed (cable/spool overhang)Not documented710 x 510 x 670 mm[3]
Net weight (kg)Not documented33 kg net[3]
Frame construction & materialNot documentedFully assembled enclosed metal-frame machine[2]
Enclosure: open / enclosed; panel material; door/lidEnclosed desktop cabinet[1]Fully enclosed with a heated chamber[2][3]
Kinematics & Motion Hardware
Kinematics (bedslinger i3 / CoreXY / other)Not documentedDual independent extruders in an enclosed Cartesian gantry[2][3]
Speed & Acceleration
Max print speed (claimed, mm/s)Not documented30-150 mm/s print speed range (manufacturer figure — a working range, not a peak marketing number)[3]
Extruder
Type (direct drive / bowden) & design nameSingle extruder — plastic only, no fibre channel[1]Direct-drive, two extruders. MK10-style nozzle[2][3]
Hotend & Nozzle
Max nozzle temp claimed AND firmware max temp limit (both values)Not documented350 °C on the high-temperature extruder assembly[2][3]
Stock nozzle size & sizes included in boxNot documented0.4 mm nozzle diameter[3]
Electronics & Power
Input voltage (110/220 V, switch or auto)Not documented110-220 V[3]
Total rated power drawNot documented700 W rated[3]
Firmware & Openness
Firmware base & current version (Klipper fork / Marlin fork / proprietary)Proprietary; slicing and print management run in Markforged's cloud-based Eiger software[1]Not documented
Connectivity, UI & Camera
WiFi (band/standard), Ethernet, USB ports, SD/flash-driveNot documentedWi-Fi, LAN, USB flash drive[2][3]
Materials Support
Officially supported filament listOnyx only — Markforged's nylon filled with chopped carbon fibre. Markforged claims parts 1.4x stronger than ABS and heat deflection to 293 °F (145 °C)[1]Carbon fibre, nylon, PETG, TPU, PC, ABS, PLA[3]

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

  1. Markforged Onyx One desktop composite 3D printer listing exbuild.com · 2026-08 · vendor
  2. QIDI Tech i-Fast technical data table 3djake.com · 2026-08 · vendor
  3. QIDI Tech i-Fast Dual Extruder FDM 3D Printer listing top3dshop.com · 2026-08 · vendor
  4. Markforged Mark Two (Gen 2) specification page aniwaa.com · 2026-08 · doc
  5. Markforged X7 (Gen 2) specification page aniwaa.com · 2026-08 · doc
  6. QIDI US store full product collection us.qidi3d.com · 2026-08 · vendor