3D Printing Info

Printer comparison

Markforged Onyx One vs UltiMaker Factor 4

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

2 selected · all documented properties

Markforged Onyx One vs UltiMaker Factor 4 — documented properties and sources
PropertyMarkforged Onyx OneINDUSTRIALUltiMaker Factor 4INDUSTRIAL
Identity
BrandMarkforgedUltiMaker
ClassINDUSTRIALINDUSTRIAL
Identity & Market
Manufacturer & exact marketed model name (verify the exact product identity first)Markforged Onyx One Desktop 3D Printer[1]UltiMaker Factor 4[2]
Release date (announcement and actual shipping)Not documentedAnnounced 22 April 2024, shown at HANNOVER MESSE 2024 (22-26 April) and TCT Asia (7-9 May 2024)[2]
Launch MSRP (USD)Not documentedStarting at approximately $20,000[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][3][4]Shares the 330 x 240 x 300 mm envelope with the UltiMaker S5, S7 and S8, which is the single most contaminated figure in UltiMaker's range. What separates the Factor 4 is the actively controlled 70 °C build volume, the climate-controlled 6-spool material station holding humidity below 15%, and HEPA filtration. UltiMaker also sells a Factor 4 Plus[2]
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 240 x 300 mm[2]
Enclosure: open / enclosed; panel material; door/lidEnclosed desktop cabinet[1]Enclosed with actively controlled chamber airflow and a HEPA filter[2]
Passive chamber temperature reached (if enclosed; measured values preferred)Not documentedBuild volume temperature controlled up to 70 °C with actively controlled chamber airflow (manufacturer specification)[2]
Kinematics & Motion Hardware
Kinematics (bedslinger i3 / CoreXY / other)Not documentedDirect-drive dual extrusion; kinematic layout not stated in the source checked[2]
Extruder
Type (direct drive / bowden) & design nameSingle extruder — plastic only, no fibre channel[1]Direct-drive dual extrusion[2]
Filament diameterNot documented2.85 mm[2]
Hotend & Nozzle
Max nozzle temp claimed AND firmware max temp limit (both values)Not documented340 °C maximum with the high-temperature print core (manufacturer claim)[2]
Filament Handling & Detection
Spool holder location & max spool size; drybox compatibilityNot documentedAutomatic climate-controlled material handling and storage station holding humidity below 15%, storing up to six spools[2]
Cooling & Air Handling
Chamber/exhaust fan & filtration (activated carbon / HEPA)Not documentedHEPA filter[2]
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
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]UltiMaker-branded PPS CF, PLA, Tough PLA, Nylon, PETG, PET CF and PVA, plus validated third-party materials from BASF Forward AM, Kimya, Polymaker, LEHVOSS and Jabil[2]
Independently Measured Performance
Dimensional accuracy measurements (third-party, with numbers)Not documentedDimensional accuracy within +/-0.2 mm or +/-0.2% of feature nominal length; UltiMaker states it tested over 95% print-completion success. Manufacturer figures, not independent measurements[2]

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. UltiMaker Factor 4: technical specifications and pricing 3dprintingindustry.com · 2026-08 · review
  3. Markforged Mark Two (Gen 2) specification page aniwaa.com · 2026-08 · doc
  4. Markforged X7 (Gen 2) specification page aniwaa.com · 2026-08 · doc