What the Factor 4 Plus Is and Why It Matters
The Ultimaker Factor 4 Plus is an industrial 3D printer designed to deliver up to twice the print speed of previous Factor 4 systems while keeping the traceability, reliability, and material performance needed for continuous aerospace and defense production. Positioned above the company’s S Series, it is aimed squarely at production-scale additive use rather than one-off prototypes. The machine combines an enclosed build chamber with a 330 x 240 x 300 mm build volume and a 120‑kilo dual-nozzle material extrusion system, giving defense and aerospace teams room for sizable tools, fixtures, and end-use parts. Ultimaker’s focus is not only on faster output but on dependable operation in factory and field environments, where long print runs, high uptime, and documented quality assurance are non‑negotiable for mission-critical components.
Doubling Throughput with High-Speed Motion and Dual-Nozzle Printing
At the core of the Factor 4 Plus is a speed increase that Ultimaker says delivers up to twice the throughput of the standard Factor 4, enabled by the new Cheetah motion planner. Cheetah reduces abrupt motion changes that create vibration, allowing the print head to move faster while preserving dimensional accuracy. Paired with AA+ and CC+ high-flow print cores and dual-nozzle printing, the system can run multi-material jobs, soluble supports, or parallelized part production inside its 330 x 240 x 300 mm build volume. For aerospace manufacturing and defense users, that means printing larger components or nested batches of smaller parts without sacrificing surface quality. The dual-nozzle layout also ties into uptime: swappable print cores cut changeover and maintenance time, supporting continuous production workflows that traditional prototyping-focused printers often cannot sustain.
TRACE Validation: Turning an Industrial 3D Printer into a Production Tool
Speed alone is not enough for aerospace and defense applications, where every part may need a digital paper trail. Ultimaker’s TRACE (Technical Reporting and Certification Engine) is built into the Factor 4 Plus to answer that need. TRACE automatically records print parameters such as extrusion behavior and chamber temperature, then generates a CAD validation report for every job. According to Ultimaker CTO Arjen Dirks, “Pulling validation data straight from the hardware gives customers the confidence and traceability they need to scale additive manufacturing into true production environments.” This embedded reporting shifts the Factor 4 Plus from a fast prototyping platform to a production-scale additive system that can support quality audits, certification processes, and repeatable part approval. For defense programs and aerospace manufacturing lines, that level of documentation is essential to move printed parts from test benches to operational use.
Material Capabilities and Performance for Aerospace and Defense
To meet aerospace and defense performance targets, the Factor 4 Plus supports advanced polymers including PPS-CF, a carbon-fiber-reinforced material with high heat and chemical resistance. That allows production of durable jigs, fixtures, housings, and spare parts that must withstand aggressive environments and long service life. The system also handles familiar engineering materials such as PLA and ABS through its high-flow print cores, maintaining speed advantages across a broad material set. For forward-deployed and remote setups, Ultimaker has reinforced the gantry to reduce vibration at high speed and maintain precision over extended operation. HEPA filtration helps control emissions in enclosed or temporary locations. Together, these features make the Factor 4 Plus suitable not only for central aerospace manufacturing facilities but also for defense depots and field units that need reliable, repeatable production closer to where parts are used.
Positioning Ultimaker in Production-Scale Additive Manufacturing
With the Factor 4 Plus, Ultimaker is stepping beyond its reputation for desktop systems into the realm of production-scale additive manufacturing. The company is targeting industrial firms, large enterprises, and defense organizations that require a combination of high throughput, detailed traceability, and lower ownership costs than many traditional industrial 3D printer platforms. Ultimaker’s leaders describe the printer as a response to concrete production challenges—demand for speed, traceability, resilience, and affordability rather than a portfolio filler. If the Factor 4 Plus can perform reliably in rugged settings—such as forward-deployed defense sites or remote industrial installations—it could secure a durable niche in aerospace manufacturing and defense logistics. That would reposition Ultimaker as a key supplier of scalable additive capacity, where printers operate as factory machines rather than isolated engineering tools.
