Bambu Lab AMS 2 Pro

A basic multi-colour system gets four spools onto a printer. It rarely tells you when a spool is damp, rarely dries it before that matters, and rarely feeds fast enough to keep pace with a printer running at full speed. Those gaps show up as bubbling PETG, weak layer lines, and colour changes that add minutes to every print.

The AMS 2 Pro is Bambu Lab's answer to all three. Sealed storage keeps four spools dry, a 65 °C drying cycle with automatic rotation pulls moisture out evenly when it does creep in, and a brushless servo motor feeds roughly 60% faster than earlier AMS generations. It is the multi-material system built for printers that are already running fast.

4 filament slots, up to 24 with expansion | Automatic 65 °C drying with spool rotation | Dual RFID coils | Brushless servo feed motor, approx. 60% faster | Airtight storage, electromagnetic venting | Compatible with most current Bambu Lab printers

Who the Bambu Lab AMS 2 Pro is built for

The maker running PETG, Nylon, or other moisture-sensitive filament regularly

PETG, PA, and PC all absorb ambient moisture over days, and printing with a damp spool shows up as surface bubbling and reduced layer strength no matter how well the rest of the printer is tuned. The AMS 2 Pro's automatic drying, up to 65 °C with the spool rotating during the cycle, keeps loaded filament in usable condition without a separate drying box or a manual drying routine between print sessions. For anyone printing functional PETG parts or Nylon brackets on a regular schedule, that removes a recurring maintenance step from the workflow.

The owner of a P2S, X2D, H2S, or H2D upgrading from a basic AMS or AMS Lite

If your printer supports the current Bambu Lab AMS generation, moving to the AMS 2 Pro adds drying, faster feeding, and airtight storage on top of the four-slot multi-colour capability a basic AMS already provides. The brushless servo motor's roughly 60% faster feed speed reduces the time a colour or material change adds mid-print, which matters more the faster your printer's toolhead already runs. It is the upgrade that keeps the AMS from becoming the bottleneck on a high-speed printer.

The small studio or workshop running long, unattended multi-material queues

A production queue that switches materials across a working day needs filament that stays dry and correctly profiled without someone checking on it. The AMS 2 Pro's humidity sensor reports spool condition to the touchscreen, Bambu Studio, and the Bambu Handy app, and its RFID coils auto-load the correct print profile for each genuine Bambu Lab spool loaded. For a workshop cycling through PLA, PETG, and engineering filaments across several jobs, that reduces the manual checking and reconfiguration that a basic AMS setup requires.

What sets the Bambu Lab AMS 2 Pro apart

Drying that runs automatically, not as a separate step

The AMS 2 Pro heats its chamber to a maximum of 65 °C and rotates the spool during the drying cycle, so moisture is drawn out evenly across the roll rather than from whichever side faces the heating element. A dedicated humidity sensor tracks conditions inside the unit continuously, with the current reading visible on the printer's touchscreen, in Bambu Studio, and in the Bambu Handy app. You see spool condition before a print starts rather than discovering a damp roll of Nylon partway through a job.

Two RFID coils reading every spool automatically

Each AMS 2 Pro carries two RFID coils that read the tags embedded in genuine Bambu Lab filament, auto-loading the correct temperature and flow profile, tracking remaining filament per spool, and enabling automatic filament backup if a roll runs out mid-print. Loading four different materials means four correct profiles applied without manually selecting settings in the slicer for each one, which matters when a job queue moves between PLA, PETG, and an engineering filament across a single day.

A brushless servo motor built to keep up with faster printers

Earlier AMS generations could become the limiting factor on a fast printer, with feed speed lagging behind what the toolhead could otherwise achieve. The AMS 2 Pro's brushless servo motor feeds filament roughly 60% faster, keeping colour and material changes from adding excessive time to a multi-part print on printers like the X2D or H2S that already run at 1000 mm/s.

Airtight storage with venting that only opens when needed

Between drying cycles, electromagnetic air venting seals the unit for airtight storage, keeping humidity out of the cabin so a spool loaded on Monday is still print-ready on Thursday without a fresh drying cycle first. The vent opens automatically only during active drying, to expel the moist air being drawn out of the filament, then reseals once the cycle finishes.

Broad compatibility across the current Bambu Lab range

The AMS 2 Pro connects natively to current-generation printers including the P2S, X2D, H2S, and H2D, and up to four AMS 2 Pro or AMS HT units can be daisy-chained for a combined 24 filament slots. Owners of the P1S or X1 Carbon can add an AMS 2 Pro using Bambu Lab's upgrade kit, which includes the filament buffer or AMS hub, a PTFE tube coupler, and the connecting cable needed to bridge the older printer's connection to the newer AMS generation.

Full specifications

* Filament shown in pictures are sold separately.

How the AMS 2 Pro compares to the rest of the Bambu Lab AMS range

Materials and software

Filaments the AMS 2 Pro handles well

• PLA, hotend approx. 220 °C. RFID auto-recognition applies the correct profile per spool, and PLA rarely needs the drying function unless a spool has sat unused for months.
• PETG, hotend approx. 240 °C. This is where the drying function earns its keep. PETG absorbs moisture faster than PLA, and a pre-print drying cycle noticeably reduces bubbling and stringing.
• ABS and ASA, hotend approx. 250 °C. Works well when paired with a printer running active chamber heating, such as the X2D or H2S; the AMS 2 Pro handles the filament supply side while the printer's chamber manages the print environment.
• PA (Nylon), PAHT, PPA, hotend approx. 260–280 °C. Among the biggest beneficiaries of automatic drying, since Nylon is highly hygroscopic and produces bubbling and weak layer adhesion within hours of exposure to humid air.
• PC, hotend approx. 270–280 °C. Benefits from a pre-dried, sealed spool; the AMS 2 Pro's airtight storage between print sessions helps maintain that condition.
• Carbon and glass-fibre reinforced grades, generally supported through the AMS 2 Pro's feed system; nozzle wear from these materials is a function of the printer's hotend, not the AMS unit itself.
• TPU, workable but reduce print speed and check retraction settings; flexible filament through any AMS feed path benefits from more conservative speeds than rigid materials.

Slicers and software

Bambu Studio is the native slicer for macOS, Windows, and Linux, with full access to AMS 2 Pro slot assignment, RFID filament data, humidity readouts, and drying cycle controls. The Bambu Handy app mirrors slot status, humidity levels, and remaining filament remotely. Third-party slicers such as OrcaSlicer, PrusaSlicer, and Cura generate compatible G-code for AMS-equipped printers, but AMS 2 Pro-specific features, including RFID data and drying control, are managed through Bambu Studio and Bambu Handy.

What's in the box

• Bambu Lab AMS 2 Pro unit, 4 filament slots
• 6-pin connector cable
• PTFE tube holder and PTFE tube
• Spool holder assembly
• External exhaust fan with 6-pin cable connections
• Quick start guide and warranty documentation

Ordering, shipping and support

The Bambu Lab AMS 2 Pro is supplied through 3D Printing Store's Bambu Lab range, with courier delivery across South Africa and collection available from our Centurion and Boksburg branches. Warranty claims are handled locally by our own service team, so a covered fault does not involve shipping the unit overseas. Compatible PLA, PETG, ABS, and ASA filament is stocked for ongoing use, and our team can confirm compatibility with your specific printer, including upgrade kit requirements for the P1S or X1 Carbon, before you order.

Frequently asked questions

Is the AMS 2 Pro worth the upgrade over a basic AMS or AMS Lite?

If you regularly print PETG, Nylon, or other moisture-sensitive filaments, the automatic drying function alone justifies the upgrade, since it removes a manual drying step that a basic AMS or AMS Lite cannot perform. If your printing stays within dry-stored PLA on a slower printer, the difference is less pronounced, though the faster brushless feed motor still reduces colour-change time on any print.

Can the AMS 2 Pro print TPU, ABS, and carbon-fibre filaments?

Yes to all three. TPU works but benefits from reduced print speed for reliable retraction. ABS and ASA print well when the printer itself provides chamber heating, since the AMS 2 Pro manages filament supply rather than the print environment. Carbon and glass-fibre composites feed through without issue, with nozzle wear governed by the printer's hotend material rather than the AMS unit.

How long does it take to set up the AMS 2 Pro on a compatible printer?

On a native-compatible printer such as the P2S, X2D, H2S, or H2D, connection takes around 10 to 15 minutes: connect the supplied cable and PTFE tube, then run the setup sequence from the touchscreen. On a P1S or X1 Carbon, installing the upgrade kit first, which includes the filament buffer or AMS hub, PTFE coupler, and cable, adds roughly 20 to 30 minutes to the process.

How often does the AMS 2 Pro need cleaning or maintenance?

Maintenance is light. Wipe down the exterior and check the PTFE tubes for wear periodically, and keep an eye on the humidity readout if a spool has been stored for an extended period. The automatic drying cycle and airtight sealing handle most moisture management without manual intervention, so day-to-day upkeep is minimal compared with manually drying and storing filament yourself.

Does the Bambu Lab AMS 2 Pro come with local warranty support in South Africa?

Yes. Warranty claims are handled locally through 3D Printing Store's Centurion and Boksburg branches, so a covered fault does not require shipping the unit overseas. Contact our team for pre-purchase compatibility advice, including whether your printer needs the upgrade kit, or for warranty queries.