Torken nozzle side not showing in AMS with FTS and 2x AMS2 Pro

Bambu Lab H2 Series
1

I just changed the top mounting method of my 2 AMS’s to reduce length of tubes.

Previously all nozzles were identified but the HSC always printed via the right side Torken nozzles. I decided to do a factory reset and have the complete setup and calibration redone. Now its defaulting to the left side or fixed nozzle.

Although the filaments in both AMS’s (and the 2 AMS-HT’s) are recognized by the H2C studio is showing NO AMS connected to the right nozzles.

Did I perhaps misunderstand setup when it asked me to do the calibration WITHOUT the hot ends installed?

If not that, what else?

After Sync
After Sync493×678 73.6 KB

No right nozzle
No right nozzle744×705 63.9 KB

e

AMS Right not installed
AMS Right not installed497×511 52.5 KB

2

What you’re probably looking for isn’t done in the slicer, but on the printer - but let’s take it step by step:

Please check first to make sure you’ve connected everything correctly, just as described in the guide. You’ll need to scroll down a bit:

…and then make the assignment to the correct nozzle on the printer itself:

Screenshot 2026-08-23 013935
Screenshot 2026-08-23 0139351603×880 103 KB

If you’re still having problems: The guide for the Filament Track Switch:

3

Yes, I figured it was H2C setup somewhere. I have to wait for a longish print to finish before doing anything on the printer. Time to read your links :slight_smile:

4

Weeell,

Its fixed but not. All my AMS’s are seen and the filaments documented. With the FTS the H2C instructions say no need to associate a particular AMS to a specific head. All seemed good but I started getting errors about the aux feed being unable to feed the head or overloading.

The instruction was to pull back filament and snip the end off - this worked but every time a new print started even with same filament - the same problem.

Eventually I figured that the filament was being sent to the wrong print head, apparently not expecting filament it refused. By that I mean printer or slice had selected print head A or B - shown by the light, but filament is being sent to the other print head.

Something is wrong with my FTS perhaps?

I’ll be reporting this problem to BL.

5

On your printer, do a manual setup of the FTS and bind each AMS to the FTS input it’s connected to.

6

OK - I’ll try to do that. However, in my defense the H2C instructions with FTS (not H2D) specific lily said not required since that is the function of the FTS. :upside_down_face:

7

I think I got it.

I didn’t understand how to do manual until I realized I had to align the filament tubes into the FTS the way they showed. not expect to confirm how I had them installed. The first print selection worked - hopefully its all good now. Thanks for sticking with me.