
The UltiMaker S6 Flex Secure continues the S series tradition of versatility and modularity, specifically tailored for high-stakes defense, government, and other high-security applications where data security is mission-critical. UltiMaker's proven performance is combined with hardened security and trusted EU manufacturing, supercharged by the Cheetah motion planner for up to 4× productivity — and backed by a unique 24-month warranty.
Ships with the heated flexible PEI build plate for glue-free printing and effortless part removal.
Building directly on the great legacy of the UltiMaker S5, the S6 retains all its cherished versatility and modularity. UltiMaker added powerful innovations like the UltiMaker Cheetah motion planner, improved bed leveling, a new dual-drive feeder, and a flexible build plate — delivering S8-like productivity gains of up to 4× over its predecessor while keeping reliability paramount.
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Proven versatility of the S5: Enhanced in the UltiMaker S6 to achieve up to 4× productivity. Iterate designs faster and bring innovations to market quicker, backed by dependable performance and new features like the flex plate.
Effortless professional 3D printing: Designed to be the most easy and accessible way to utilize the UltiMaker ecosystem — from advanced materials to UltiMaker Cura — streamlining your workflow.
Reliable high output: Achieve up to 4× the output without compromising on reliability. Improved bed leveling and the flex plate reduce print failures and simplify part removal.
High speed printing: Blends S5 versatility with Cheetah motion, improved leveling, and the flex plate for accessible, fast printing — prepared offline in UltiMaker Cura and transferred securely by USB or isolated LAN.
Unmatched modularity: Full accessory compatibility ensures a smooth transition, all at a more accessible price point.
Uncompromised reliability: Like its bigger brother the S8, the UltiMaker S6 achieves up to 4× the productivity of the S5 without compromising on the reliability UltiMaker is known for.
Unlock new levels of efficiency with the UltiMaker Cheetah motion planner, redesigned high-flow print cores, built-in accelerometer, new feeder system, and improved firmware.

UltiMaker Cura and the S6 Secure provide an easy, secure, offline workflow — from 3D model to finished part — with no cloud or internet dependencies. Slice with 400+ settings, application intent profiles, and material interlocking, then transfer print jobs by USB stick or over a secure, isolated LAN.


High flow print cores
The new AA+ and CC+ print cores have a quad-chamber design, allowing for 2.5× more flow while regulating pressure in the print head for cleaner prints.

Flexible build plate (included)
Skip using glue and remove parts effortlessly with the PEI-coated flexible build plate. Its patent-pending design uses 25 magnets and 4 pins for perfect alignment.

Cura integration
Access the UltiMaker Cura features that speed up your workflow and increase print success — like intent profiles and sequential printing — entirely offline.

Updated feeder system
New hardened feeder module design inherited from Factor 4 for improved grip and better material control at high speeds.

Dual high flow print cores
The dual extrusion design works together with software and firmware features to let you combine any two materials, no matter how different, with low material waste and high reliability.

Optional EPA filter
Independently tested to remove up to 95% of ultrafine particles for air-quality peace of mind. The fully enclosed build chamber also boosts print quality.

Technology: Fused deposition modeling (FDM)
Print head: Dual-extrusion print head with unique auto nozzle-lifting system, flood detection, and inductive probing
Feeder type: Dual gripper feeder with tension adjustment, release functionality, and filament feed-rate control
Motion planner: UltiMaker Cheetah — the world's first jerk-limited motion planner with third-order continuous smooth motion and corner blending
Build volume (XYZ): 330 × 240 × 300 mm (~13 × 9.4 × 11.8 in)
Layer resolution: 60–400 microns (depending on print core nozzle size and print profile)
Dimensional accuracy: ±0.15 mm ±0.15% feature nominal length*
Extrusion flow: Up to 35 mm³/s
XY speed, acceleration, jerk: Up to 500 mm/s, 50,000 mm/s², 100,000,000 mm/s³
Filament diameter: 2.85 mm
Compatible print cores: AA+ 0.4 (included); CC+ 0.4, BB 0.4 / 0.8, and DD 0.4 sold separately**
Nozzle temperature: Up to 340 °C (572 °F)
Build plate: Heated flexible PEI build plate, up to 120 °C (248 °F)
Material handling: Dual spool holder with NFC recognition
Compatible materials: UltiMaker PLA, Tough PLA, PETG, ABS, CPE, CPE+, PC, Nylon, TPU 95A, PET-CF, Nylon CF Slide, PVA, Breakaway, and hundreds of third-party materials
Connectivity: LAN: Gigabit Ethernet (for secure, isolated networks); USB 2.0
Wi-Fi: None — air-gapped for secure operation
Onboard camera: None — removed for secure environments
Cloud services: None — no Digital Factory or Cura Cloud dependency
Firmware: Factory-flashed, tamper-resistant
Print preparation: UltiMaker Cura 5.10.1 or newer (Windows, macOS, Linux)
Dimensions: 495 × 585 × 780 mm (~19.5 × 23 × 30.7 in), incl. Bowden tubes and spool holder
Net weight: 30 kg (66 lbs)
Display: Fast responsive color touchscreen
System on module: ARM Cortex quad-core at 1.8 GHz
Real-time controller: 600 MHz Arm Cortex-M7
Operating sound: < 50 dBA
Operating temperature: 15–32 °C (59–90 °F), 10–90% RH non-condensing
Country of origin: Netherlands (TAA compliant)
Warranty: 24 months
*Typical accuracy based on selected geometries, materials, and randomly selected machines. **Legacy AA and CC print cores can be used with pre-sliced print jobs. Specifications subject to change.
Product Data Sheet User Manual

AA+ and CC+ print cores: Quick-swap nozzles that enable higher flow rate.

Material Station: Simplified and automated material handling.

Air Manager: EPA filter removes up to 95% of UFPs.
UltiMaker 3D Printer Support Resources
UltiMaker Software Support Resources
UltiMaker Community Forums
UltiMaker Downloads
For general usage questions, contact 3D Universe:
Email: support@3duniverse.org
Phone: 800-689-4344
For hardware-related support, contact UltiMaker North America Support:
Web: ultimakernasupport.com
Email: support@ultimakernasupport.com
Phone: 888-229-9046
STL files: Thingiverse, YouMagine, Yeggi
CAD software: TinkerCAD (free, browser-based, great for beginners), SketchUp, FreeCAD, Blender, Autodesk Fusion 360, OpenSCAD
Nothing will impact your 3D printing results like the kind of filament you use. Good filament is highly consistent in diameter, is wound evenly onto the spool with just the right amount of tension, and will not tangle when being unwound. 3D Universe offers a wide range of high-quality filaments to choose from. Check out our filament collection...
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