Is there a fix for the AMS forgetting filament details

[Oddity3D]

I’m talking about the AMS forgetting K values, filaments and even colour - seemingly at random. I’ve been stood looking at the filament tab and the colour on one of the slots changed from black (actual colour) to white (default?).

Is there any fix for this happening?

(Printer/s are X1Cs with one AMS connected all on latest versions)

Thanks

[JayZay]

Hi,

That shouldn’t happen.
Are you facing similar issues with multiple printers?

Does it happen with custom filaments? Or also with stock ones?

[Oddity3D]

Multiple printers, never used more than the filament samples bambu sent (too expensive) so only third party/no rfid spools

I’m exclusively setting the values in the slicer

edit - good example, print just finished, k values no longer applied on the printer or the slicer, if I go into the filament option no k value is applied either

[JayZay]

That’s new for me.
If you didnt tell me about multiple printers, I would guess it was some issue with the printer or AMS.

Please confirm using the latest Bambu Studio software and printer/AMS firmware.
When I mentioned custom filament, I wasn’t referring to the third-party ones. Yet, you can create presets within the slicer. I can create a custom filament and add it to the AMS:

Or you can use the generic type and add it to the AMS:

[Oddity3D]

Ah, sorry - misunderstood,

All custom profiles based on the generic presets with the only changes that have been made are flow rate, air filtration enabled/case cooling fan percentage changed and temperatures with k values set via the flow dynamics calibration tab

all up to date (says latest version)

Thanks for trying to help

[Plarad]

I have the same issue since yesterday (I guess). Noticed it today after an 18h print.
Made a video for clarification - how can I share? I am not allowed to embed or link it … kinda annoying

[GrahamGo]

Impressive list of different brands. I wonder how you come to choose them? But my question. How did you generate the list of Factor’s? I am sure that I did it myself sometime ago. But have just spent 10 minutes trying again to see my Factor K list, I cant find it.

[Oddity3D]

I’ve just replaced my existing high temp printers with x1cs, I use different brands/materials/colours, just the perfect colour or material for the print, not calibrated all of them for the x1c yet - When I need to use them I’m doing the calibration one at a time.

They are in the calibrate tab in the slicer, go to flow dynamics, scroll down, click manage results

[GrahamGo]

Found it! (calibrate tab) - thanks. I switched to using Orcas Slicer some weeks ago. Basically because I was not seeing the Factor K’s of the none Bambu filaments in the Device using Bambu studio. I was told that if you used Orca Slicer then the calibration values (flow rate, pressure advance) were definitely used, and it is normal for the AMS to not display a K factor. Anyway, I proved to myself that this was the case, so have adopted Orca Slicer. I don’t have much interest for Makerlab ATM. Like you, I do take the time to calibrate a new filament, even though it’s a bit of a bind to do so. I kind of wish that there was a place to post calibration results and to share with other folks.

[Oddity3D]

I’ve found (I’m pretty sure after a week) a solution

I had mostly convinced myself there was some sort of software-level conflict going on, so I started cutting out potential conflicts…

I’ve stopped using the handy app and the second laptop in the print room and my AMS problems have literally stopped over night - considering they were easily repeatable and were previously happening almost every print… I’m going with this having fixed it

[GrahamGo]

I wonder, is there “intelligence” in the AMS, or does the printer just send, do this, do that, commands to the AMS? Doesn’t Bambu Studio (BS) know everything about the AMS? I mean, in BS, I can add a new filament using the Custom Filaments section, I can set its location. So really, BS knows everything about the filament. The only thing it doesn’t know is the physical location of the filament in the AMS (unless its a Bambu rfid filament). Then we have sync/resync. Why do we need two buttons? - why not just use Resync. Both are instantaneous. Of course, I guess things get trickier when you have more AMS units. I think overall that the Printer/AMS relationship could be handled in a clearer way by the BS UI. but maybe thats just me being picky.