Slicer not assigning filaments correctly - H2C - But have work around

Bambu Lab H2 Series
1

First off, I setup this H2C with 2 AMS Pro’s and one AMS HT on 7/4/26 and have about 40 hours on it, and I think this printer is AWESOME!!!

But here is the small issue that I found, but I found a work around to remedy it. I can sync the device and filament and it is correct (previously assigned filaments under the device tab.) It doesn’t matter if before or after a 3MF file is loaded as an object, but after I assign two different filaments, one from the left hot end and one from the right, the slicer then shows only one filament when sliced under any format, even Custom.

My remedy is to go back to the Prepare tab and remove all of the filament, then do another device sync. Now I assign the two different filaments again and they show up just fine in the slicer results.

Maybe it’s my sequence, or maybe a bug in slicer. Glad to hear input on this. Other then this little issue which I believe is a slicer issue, this printer has been flawless in every way! I really enjoy this printer and I came from using an X1C for the last couple of years.

2

I’ve noticed some odd behavior with filament assignments, it seems to be related to the most recent releases of Studio.

I’ve had some success selecting “custom nozzle assignment” and manually setting which filament goes where.

3

Yep. I do that always now. But like clock work, unless I follow the steps I said before after loading a model, the slicer will only show one filament. At least there is a work around for now. :slight_smile:

4

I am fairly new to 3D printing. I am using the H2D with the AMS-HT (left) and the external spool (right). I assign one color to the right (Ext) and one color to the left (HT) and it slices OK and shows the left and right colors. When I go to print, only the left color is showing, there is nothing on the right. Anyone have any ideas?

5

I’ve noticed it as well. BL needs to get their shitz together!!! All these bs updates for studio and they are just jacking it all up. I always do a double check on filament selection before I print. Come on BL!

6

Don’t you see it at all?

Normally for me, the external spool side is showing this:

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If you pick the little down arrow the following menu appears:
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Select your filament, and you are ready to go.

Is this what you see?

7

Thanks for the response.

I tried to send pictures but the forum doesn’t allow pictures in the reply.

When I do the slicing I get a window that shows both filaments.

It goes through the motions and says the slicing was OK.

Then when I go to print I get a screen that shows a filament only on the right side.

8

As you are still a new user, it takes some time/posts to be able to post pictures.

But what I understand, you don’t see something similar to me.

Which version are you running?

I have been using many versions from standard released versions to beta’s, but never had serious issues with external spools.
The only thing is that already for a reasonable time, I need to do this action as I explained above. In the beginning, the correct filament was selected, and the printer directly selected the external spool.

9

Sorry for the late response, I only work 2 days a week.

We have a Bambu H2D and are running 2.8.2.6.1.

10

I am abroad now and will be back on Sunday. I will have a look then.

In all versions I have been running, it always worked.