OK What am I doing Worn trying to us My HT

Bambu Lab H2 Series
1

OK so rather confused here…

I have a external spool on the left nozzle and I loaded PA6 in my HT on my right nozzle. I loaded the filament in the right nozzle and when I slice it shows me the correct filament to correct nozzle. When I hit the print button I get this page (see pic) and it says the filamans are not mapped. So I click on the left nozzle and pick the external spool but when I click on the right I am unable to select the HT AMS and can only select the external spool as well. So what am I ding wrong?

Screenshot 2026-06-10 121208
Screenshot 2026-06-10 1212081324×973 242 KB

2

I am guessing you did not sync before printing.
Quick read up on mappnig and slicing: Filament Mapping Principles for Print Initiation in Bambu Studio | Bambu Lab Wiki

1 Like
3

PA6-CF is not AMS-compatible. If you put PA6-CF in the AMS HT, the AMS HT can only act as a heated/dry storage box with manual/bypass feeding — it cannot be selected as an AMS source for that filament.

For the right nozzle, select External Spool / manual feed, even if the spool is physically sitting inside the AMS HT. In that setup the AMS HT is not being used as an AMS; it is just acting as the filament container/dryer.

So you are not doing anything wrong by being unable to select the AMS HT for PA6-CF. Bambu Studio is blocking that because PA6-CF is marked as not compatible with all AMS series.

2 Likes
4

skip AMS blacklist check ? (preferences)

5

I did sync or so I thought..

6

Really? I was told the HT was for the higher temp filaments. So If I select the external spool with the PA6 in the AMS HT is it going to feed ok since the HT is driven by motors that the printer controls?

7

What does this mean, not sure what you are saying.

8

I’ve used the HT for PA6 many times, no issues.

1 Like
9

You can set to skip the check. I print ASA CF with the AMS without issues.

10

If you use it as an external spool it will not feed it automatically, then you need to activate skip blacklist in Studio settings.

11

I print PPA/PPS-CF from mine with zero issues but it all depends on the setup.

12

You mean PPS CF isn’t in the AMS blacklist ? I don’t know, never used.

13

Since it’s both harsh and fragile it probably in that list.
Why do you think it’s not in the blacklist?

14

just because you did not specified that you turned that off first…

15

Just because I didn’t specify that I turned that off first does not mean I’m printing carbon-fiber unicorn materials in a sealed mystery box using factory defaults and pure optimism.

I also never said I was using a Bambu Lab machine for that specific print. What I said was:

“I print PPA/PPS-CF from mine with zero issues, but it all depends on the setup.”

That was the whole point. The setup matters: printer, drying, chamber, nozzle, plate, profile, cooling, and everything around it. Without that context, assuming the exact machine and exact defaults is doing a bit too much detective work with too little evidence.

No hard feelings though — we have all accidentally over-diagnosed a forum post at least once. That is basically how the internet stays employed.

16

Sorry I thought topic was about not getting the filaments out of the AMS and why, where the AMS HT with fibers being automatically filtered out without warning as a possibility :man_shrugging:

17

ASA-CF is AMS compatible, so no Blacklist toggle required for that.

18

blacklist toggle is absolutely mandatory unless you like to to click on popups from the slicer, that screams like a pig about risks blah :melting_face: