UltiMaker S6: print cores, material profiles and professional uses

Built for a workshop, not a hobby bench

According to the UltiMaker S6 installation and user manual, the printer is designed for fused filament fabrication in a commercial, professional or industrial environment, for concept models, functional prototypes and small series. The manual also states that the user remains responsible for validating the printed part for its intended use, especially in regulated fields such as medical devices or aerospace. That framing matters: you evaluate the S6 as a system of machine, consumables and accessories, not as a spec sheet.

The product page lists a 330 x 240 x 300 mm build volume, Bowden dual extrusion and a partly enclosed, passively heated chamber. UltiMaker highlights its Cheetah motion planner, travel speeds up to 500 mm/s and acceleration up to 50,000 mm/s². The stated dimensional accuracy of ± 0.15 mm ± 0.15% is described by UltiMaker as typical accuracy on selected geometries in PLA and Tough PLA, on randomly selected machines. Treat it as a manufacturer figure, not a guarantee on your parts. If you are still weighing several machines in this class, the professional 3D printer guide lays out the questions to settle before requesting quotes.

AA+, CC+ and BB print cores: one core per material family

Swappable print cores are the heart of the S6. Per the product page, the printer ships with one AA+ 0.4 mm core for build materials and one CC+ 0.4 mm core for composites. The BB core for soluble support materials is sold separately. Printing complex geometry with PVA soluble supports therefore means an extra line item from day one.

Available nozzle diameters are 0.25, 0.4, 0.6 and 0.8 mm. UltiMaker says the AA+ and CC+ cores use a new quad-chamber design that allows 2.5x more flow, with extrusion flow up to 35 mm³/s, and that it helps regulate pressure in the print head. CC+ cores support nozzle temperatures up to 340 °C. UltiMaker's compatibility table pairs an AA core with PLA, Tough PLA, PETG, ABS, CPE, CPE+, nylon, PC, TPU 95A and PP. The manual notes that an ordinary person who has read the manual may swap cores, and a dedicated chapter covers core maintenance. In concrete terms, the two cores in the box cover build materials and composites at 0.4 mm. A shop that also wants finer detail with a 0.25 mm nozzle, or thicker layers at 0.6 or 0.8 mm, must add one core per extra diameter, plus a BB core if it wants soluble supports.

Material profiles, NFC spools and 2.85 mm filament

The S6 uses 2.85 mm filament rather than the 1.75 mm common on consumer machines. That is the first dependency to plan around: existing 1.75 mm stock from other printers will not run on this one. The product page claims 301+ compatible materials, and the manual describes the S6 as an open platform optimized for UltiMaker materials, whose parameters are matched to the machine. The spool holder is NFC-enabled for two spools, so UltiMaker spools are recognized automatically.

On the software side, UltiMaker highlights intent profiles in UltiMaker Cura, remote printing and fleet management through Digital Factory, on macOS, Windows and Linux. Accepted input formats include STL, OBJ, X3D and 3MF, and printable files are G-code or UFP. For third-party materials, the manual asks you to check with the supplier whether additional risks and safety measures apply, and to consult each material's safety data sheet. A shop mixing UltiMaker and third-party spools should therefore check, for each third-party reference, whether a profile already exists on the Marketplace the manual refers to. If not, budget time to build and validate a Cura profile, and keep those profiles alongside the production files.

Material Station and Air Manager: options that change the workflow

Per the product page, the S6 is backwards compatible with the Material Station, which is designed to be left unattended so the printer can run day or night, with spool loading that takes seconds. The manual lists the Material Station as an optional S series add-on and states that each configuration, with or without it, has a different workflow described in the manual. UltiMaker's comparison table describes the S7 Pro Bundle as offering NFC and humidity control for six spools, whereas the bare S6 handles two spools on its NFC holder.

Two manual instructions apply directly to this accessory: close its door immediately after loading to limit interior humidity and accidental impact, and store nothing inside the printer other than compatible spools in the Material Station. The Air Manager, also optional, adds an EPA filter independently tested to remove up to 95% of ultrafine particles and fully encloses the build chamber, which UltiMaker says also boosts print quality. Without it, the chamber remains partly open; in both cases the chamber heating stays passive according to UltiMaker's comparison table. The supplied sources do not say which materials require the enclosed chamber: for each material you plan to run, check the Cura profile and the UltiMaker material page before deciding whether the Air Manager belongs on the quote.

Flexible PEI plate or glass: two variants to pick from

The manual states that the S6 comes in two variants, with a glass build plate or a flexible build plate, both covered in the same document. The product page details the PEI-coated flexible plate: alignment by 25 magnets and 4 pins, and the ability to skip glue when removing parts. Advanced active leveling uses a capacitive sensor that scans the plate at multiple points and compensates on the first layers. The stated bed heat-up time is under 5 minutes from 20 to 60 °C.

For the glass variant, the manual includes a safety section. The plate is safety glass, but chipping or breakage remains possible, particularly during cleaning, with high-temperature materials, or with prints that have a large contact area. UltiMaker then recommends alternative adhesion methods such as an adhesion sheet or a raft, plus regular inspection. Your choice depends on your dominant materials and part sizes. The product page highlights glue-free part removal on the flex plate; the manual flags a higher glass risk with high-temperature materials and large contact areas. A shop that prefers glass should fold inspection and replacement into the preventive maintenance schedule in chapter 5 of the manual.

Installing the S6: space, power, ventilation and budget

The product page lists assembled dimensions of 495 x 585 x 780 mm including the spool holder, a net weight of 22 kg and a maximum power output of 500 W. Operating ambient temperature is 15 to 32 °C, and operating sound is stated as under 51 dBA, which UltiMaker says suits an office, studio or classroom. The manual requires a grounded outlet and a circuit breaker not exceeding 20 A on 100-120 V circuits or 16 A on 220-240 V circuits. It also asks you to keep at least 4 cm between the printer's magnets and any implanted electronic medical device.

On emissions, the manual states that UltiMaker materials can be printed without additional filtration, at the recommended temperatures and settings, in a well-ventilated space with a minimum air exchange rate of 1.8 for a 30.6 m³ room, and that several printers in a contained space raise particle and VOC concentrations. On cost, think in terms of a system rather than a machine: BB core, extra nozzle diameters, Material Station, Air Manager, 2.85 mm spools and, if your reseller offers it for the S6, an UltiMakerCare service plan. The startup budget tool helps you add up those items, and a quote request from UltiMaker or a reseller is the only way to get real numbers.

Sources and limits

• UltiMaker S6 - UltiMaker
• FR-UltiMakerS6-V1.0-2025-06.pdf

We organize manufacturer and community documentation; we have not measured these products ourselves. The manual for your exact model takes precedence over general guidance.