What Factor 4 Plus Is and Why Speed Now Matters
Ultimaker’s Factor 4 Plus is an industrial 3D printer designed to deliver up to twice the print speed of the standard Factor 4 while adding automated Trace validation, high-flow print cores and advanced material support to enable continuous, documented production for aerospace and defense manufacturers. This platform targets a key bottleneck: moving additive manufacturing from prototyping to consistent factory output. Its 330 x 240 x 300 mm build volume and dual nozzle printing system allow teams to produce larger, more complex components or combine multiple parts in a single job. Ultimaker positions Factor 4 Plus as a production-ready system rather than a lab-only tool, aiming to fit into high-mix, low-volume environments where lead times and qualification cycles are tight. For regulated sectors, the combination of speed, production validation and repeatable performance is designed to compress timelines without weakening process control.
Cheetah Motion Planner and High-Flow Cores: How Speed Doubles
The core of Factor 4 Plus’s performance gain is Ultimaker’s Cheetah motion planner, which smooths motion to avoid abrupt direction changes that cause vibration. By reducing mechanical shock, the system can move faster without losing dimensional accuracy, a crucial factor for aerospace manufacturing where tolerance drift is unacceptable. According to UltiMaker, Factor 4 Plus “provides up to twice the speed of the standard Factor 4” while maintaining print quality. Compatibility with AA+ and CC+ high-flow print cores further increases throughput by pushing more material through each nozzle, especially with engineering grades like ABS or high-temperature carbon fiber composites. Together, motion control and high-flow extrusion shorten build times for jigs, fixtures and spare parts, making it viable to print urgent tooling or replacement components inside tight maintenance windows instead of waiting days or weeks for machined parts.
Trace Validation and Production-Grade Quality Assurance
For regulated industries, speed alone is not enough; every part needs a verifiable history. Ultimaker’s TRACE (Technical Reporting and Certification Engine) is built into Factor 4 Plus to deliver production validation automatically. TRACE records critical parameters such as extrusion behavior, chamber temperature and print settings, then generates a CAD validation report for each print. This creates a digital paper trail aligned with aerospace manufacturing and defense documentation practices, where repeatability and documented process control are mandatory. UltiMaker CTO Arjen Dirks says TRACE “pulls validation data straight from the hardware,” giving customers confidence to move additive into true production environments. Instead of manual logging, engineers receive machine-generated records that can be tied to part numbers, maintenance events or certification files, reducing administrative overhead while strengthening compliance and audit readiness for continuous additive workflows.
Dual Nozzle Printing, Build Volume and Advanced Materials
Factor 4 Plus pairs its 330 x 240 x 300 mm build volume with a 120-kilo dual-nozzle material extrusion system, giving users flexibility in how they structure jobs. Dual nozzle printing allows combinations such as structural material plus soluble support, or two functional materials in a single build, enabling intricate internal channels and complex geometries. The platform supports standard polymers like PLA and ABS alongside advanced carbon fiber composites, notably PPS-CF. PPS-CF offers high heat and chemical resistance, aligning with aerospace and defense demands for high-performance parts in harsh environments. This material range lets teams print custom jigs, fixtures and durable spare parts that are closer to final-use properties, reducing the gap between printed prototypes and operational components. Swappable print cores help minimize downtime during material changes, keeping industrial 3D printer utilization high on crowded production floors.
Designed for Factory Floors and Forward-Deployed Defense Use
While Factor 4 Plus is built for continuous factory production, its design also targets field deployment in defense and remote operations. A revised, lifetime-tested gantry system is tuned to reduce the effects of vibration at higher speeds, helping maintain precision during extended runs in less controlled environments. HEPA filtration and a sealed build chamber support safer operation in enclosed spaces, while the interface and setup process are intended for users with limited training, which is vital for temporary or forward-deployed sites. UltiMaker notes that the platform is meant to be rugged and reliable enough for industrial firms, large enterprises and military teams. By combining validated workflows, high-speed motion control and dual nozzle printing in one industrial 3D printer, Factor 4 Plus aims to give organizations a single platform for both on-site manufacturing and field repair, shrinking logistics chains and improving operational resilience.
