Bambu Lab AMS 2 Pro
Attached to the printers. There is an AMS 2 Pro on every Bambu Lab X2D and every Bambu Lab H2S. Loading one spool is in Module 1 (1.9 Loading filament into the AMS); several colours is in Module 2 (2.5 Multi-colour printing).
Bambu Lab AMS 2 Pro with four spools, seen from the front left (manufacturer photo)
Holds | Four spools, in four slots |
How many | Ten: one on each of the eight X2Ds and the two H2Ss |
On an X2D | Feeds the left nozzle. Above an upper-row printer, on a slide-out platform below a lower-row printer. |
On an H2S | Feeds the printer's only nozzle |
Spools | Moulded plastic spools only, with your member label: a standard 1 kg spool |
Also | Sealed, with a humidity sensor |
Ask | Slack channel |
Open Bambu Lab AMS 2 Pro with one orange filament spool and four feeder assemblies visible
What it is
AMS stands for Automatic Material System: a sealed box that feeds filament to the printer, so it can load, unload and switch between four spools by itself. Sealed in, filament takes up much less moisture, which is why the lid must be closed and latched. Bambu Lab's spools carry an RFID tag, so the AMS reads the material and colour itself. For other brands you set them by hand.
What you need | |
|---|---|
One spool | Module 1 |
Several colours in one print, a backup spool, drying | Module 2 |
The printer it is attached to decides what you may print: Bambu Lab X2D or Bambu Lab H2S.
Loading a spool
Put your nametag on the printer first. Once you start loading filament, the printer is yours.
Check the spool
Solid moulded plastic. Cardboard, homemade and 3D-printed spools, and adapters for them, never go in.
Your member label on it, and a material that printer allows.
A neat winding. If the loose end slips under the turns below it, you get a crossover, which locks the spool hours into a print. Never let go of the end: unwind two or three turns, check, wind them back tightly, and feed the end straight in.
Three spools in an AMS, each with a crossover: a loose strand runs diagonally across the winding and is caught under the turns. On the white and black spools it is easy to see, on the blue one much less so
Load it
Open AMS 2 Pro viewed from the front, with four white feeder tabs and one black filament spool in the second slot from the left
Unlatch the lid and lift it open. (Lower row: slide the platform out if you need room.) Put the spool in a free slot. It should sit flat and turn freely.
Press the feeder tab and push the filament end in. The AMS pulls it in by itself, and turns the spool back and forth a little while it looks for an RFID tag. That is normal.
Close the lid and latch it.
Close-ups of an AMS 2 Pro lid. Left: latched, with the latch buttons turned up and back. Right: not latched, with the buttons lying along the front
Filament from other brands
The printer screen's filament menu in three steps. Left: the AMS view, with a PLA spool in slot A1. Middle: the menu that opens when you tap a slot, with Edit, Load and Re-Read. Right: the Edit Filament screen, set to Generic PLA
Tap the slot on the printer's screen and choose Edit. Set the brand (Generic if yours isn't listed), the type and the colour, then press Confirm. Make sure the type is right: a PETG spool set as PLA prints at PLA temperatures and fails.
Unloading
After a normal print, the printer pulls the filament back into the AMS. Lift your spool straight out and take it with you: the AMS is not storage.
After a cancelled job, or one stopped by an error, run Unload on the screen first.
Someone else's spool still in it? Lift it out, tuck the loose end into a hole in the rim, and put it in the "This week" section of the filament shelf.
A backup spool and drying
Backup spool: load a second, matching spool before a long print and turn on Auto Refill on the printer's screen. The printer switches spools without stopping (2.6 AMS auto-refill: a backup spool).
Drying: dry damp filament in the hallway dryers before you print (Filament dryers). The AMS can dry too, but while it prints it dries at a lower temperature and much more slowly, so it does not rescue a damp spool. Never tie up an AMS, and with it a printer, just to dry filament (2.7 Drying filament, and the two dryers).
The most important rules
Only moulded plastic spools, with your member label.
Latch the lid.
Spools go in just before your print and come out after it. Never tie up an AMS, and with it a printer, just to dry filament.
Filament reaches the printer only through the AMS, with the tubes as they are connected. Never reroute a tube, bypass the AMS, use an external spool holder or a splitter, or push or pull filament through the tubes by hand.
After a cancelled or failed job, run Unload before you take the spool out.
Set the material type by hand for any spool without an RFID tag.
The full lists: Module 1 — Rules summary and Module 2 — Rules summary.
When something goes wrong
If filament will not feed in or come out, do not force it. Ask in the Slack channel #3D-Skrivare. The status light, common problems and what you may fix yourself: Bambu Lab AMS 2 Pro — Problems and fixes.
Learn more
The course: 1.4 Meet the AMS (meet the AMS), 1.9 Loading filament into the AMS (loading), 2.5 Multi-colour printing (multi-colour printing) and 2.7 Drying filament, and the two dryers (drying).
Bambu Lab AMS HT, the X2D's other AMS.
Image sources: reference photo, from Bambu Lab's store page for the AMS 2 Pro.
Maintenance log and serial numbers
Record AMS maintenance in the connected printer’s log: X2D maintenance log or H2S maintenance log.