Which AMS fits my printer?

Bambu Lab's AMS (Automatic Material System) holds several spools and swaps them during a print for multi-colour and multi-material printing. Not every AMS works with every printer, and some need an extra part. Here's the full picture.

By GRP 3D, Aberbeeg · Updated 7 November 2026 · Facts from Bambu Lab, sources below

Compatibility at a glance

Which AMS works with which printer (Bambu Lab compatibility guides).
Printer	AMS lite	AMS (1st gen)	AMS 2 Pro	AMS HT	What else you need
A1 mini, A1	Yes (one)	Yes, with hub	Yes, with hub	Yes, with hub	One AMS lite, or up to 4 other AMS units with the AMS Hub - A1 Series. You can't mix the AMS lite with the others. Printer firmware 01.07.00.00 or later.
A2L	Yes (one)	Yes	Yes	Yes	Up to 4 AMS units plus 1 AMS lite (up to 19 colours). One AMS connects directly; two or more need the first-generation 4-in-1 PTFE Adapter.
P1S	No	Yes	Yes	Yes	Up to 4 units. One unit needs the Filament Buffer - X1 / P1 Series; 2 to 4 need the AMS Hub.
P2S	No	Ask us	Yes	Yes	Up to 4 AMS 2 Pro and 4 AMS HT. Needs the P2S Filament Buffer (included with the P2S Combo). 3 or more units need a 4-in-1 PTFE Adapter.
H2S	No	Yes	Yes	Yes	Buffer built in. Up to 4 AMS 2 Pro and 8 AMS HT. 2 or more units need a 4-in-1 PTFE Adapter.
H2D	No	Yes	Yes	Yes	Buffer built in, one AMS per nozzle directly. Up to 4 AMS 2 Pro and 8 AMS HT. 3 or more units need a 4-in-1 PTFE Adapter.
H2C	No	Ask us	Yes	Yes	Up to 4 AMS 2 Pro and 8 AMS HT. 3 or more units need the H2 series 4-in-1 PTFE Adapter.
H3C	No	Yes	Yes	Yes	Comes with the 9-spool AMS 3H. Up to 4 more AMS units connect through PrintTool 1 (up to 24 spools); needs the H3C buffer, sold separately.

The 4-in-1 PTFE Adapter comes in two versions: choose the one for your printer on the product page. "Ask us" means Bambu Lab's guides for that printer only list the AMS 2 Pro and AMS HT. Call or email us before buying a first-generation AMS for it.

The AMS units compared

Bambu Lab AMS units (Bambu Lab figures). Live prices from our shop.
AMS	Spools	Drying	Power for drying	Best for	Price
AMS lite	4	No (open design)	–	A1 mini, A1 and A2L only	£169
AMS (1st generation)	4	No heater; sealed with desiccant	–	Enclosed storage without drying	£219
AMS 2 Pro	4	Up to 65 °C	P2S and H2 series can power one unit. On A1, A2L and P1S each unit needs the AMS 2 Pro Switching Adapter.	Everyday multi-colour PLA and PETG	from £199
AMS HT	1	Up to 85 °C	Always its own mains cable (included)	Nylon, PC and fibre-filled filaments; TPU through its bypass	from £99
AMS 3H	9	2-slot dryer, up to 85 °C	Part of the H3C	Comes with the H3C	With the H3C

Drying only works while the AMS is connected to a printer that is switched on – there is no stand-alone drying.

Which filaments can go in an AMS?

Standard 1.75 mm filament on standard 1 kg spools (50–68 mm wide, 197–202 mm across).
Ordinary TPU and other soft filaments don't feed reliably. Use Bambu Lab TPU for AMS, the printer's external spool holder, or the AMS HT's bypass outlet.
Other brands' carbon and glass fibre filaments can wear AMS parts. Bambu Lab's own PLA-CF, PETG-CF and PAHT-CF are designed for the AMS (Bambu PET-CF is not).
ABS, ASA and PETG-CF are not compatible with the AMS lite.
Damp PVA and BVOH can jam – dry them first.
RFID tags on Bambu Lab spools set the filament type and colour automatically.

Our suggestions

A1 mini or A1, mostly PLA: the AMS lite (or buy the printer as a Combo).
P2S: the P2S Combo includes an AMS 2 Pro and the filament buffer. Add an AMS HT for engineering filaments.
P1S: AMS 2 Pro if you want drying (with the Switching Adapter), or the first-generation AMS for sealed storage.
H2S, H2D, H2C: AMS 2 Pro for everyday colours, AMS HT for nylon, PC and fibre-filled filaments.

Questions we get asked

Will the AMS lite work with my P1S or P2S?

No. The AMS lite only works with the A1 mini, A1 and A2L. For P and H series printers use the AMS 2 Pro, AMS HT or, on the P1S, the first-generation AMS.

Can I use two AMS lite units on one printer?

No, one per printer. An A1 or A1 mini can instead use up to 4 enclosed AMS units with the AMS Hub - A1 Series, and the A2L can use up to 4 AMS units plus 1 AMS lite.

Does the AMS 2 Pro need its own power adapter?

To dry filament, yes on the A1, A2L and P1S: each AMS 2 Pro needs the AMS 2 Pro Switching Adapter. The P2S and H2 series can power one AMS 2 Pro themselves; extra units need their own adapter.

Should I buy the AMS 2 Pro or the AMS HT?

The AMS 2 Pro holds 4 spools and dries at up to 65 °C, which suits everyday multi-colour PLA and PETG. The AMS HT holds 1 spool and dries at up to 85 °C, which suits nylon, PC and fibre-filled filaments, and it can feed TPU through its bypass.

Can an AMS dry filament on its own?

No. The AMS 2 Pro and AMS HT only dry while connected to a printer that is switched on. The AMS lite and first-generation AMS have no drying heater.

Still not sure?

Call us on 01495 820215 (Monday to Friday, 9am to 5pm), email hello@grp3d.shop, or visit our shop in Aberbeeg.

Sources

Specifications are Bambu Lab's own figures. Prices and stock come live from our shop and can change.