Hello,
everytime I power of X1C with AMS, the AMS/Printer forgot all K-Faktor Settings stored to the AMS Filaments. So I have every morning manual edit the AMS Setting.
How to fix, thank you!
Probably you need to send a support ticket ,
but here is a work around in the advance settings of the filament
M900 k0.02 ; Set pressure advance
;or; M900 k0.02 L1000 M10; BS transfer test based on Orca slicer output
My Example bellow actually is using parameter from the filament jason file as I use the filament settings from Orca slicer which is shared with BS so just replace [pressure_advance] with 0.02 or what ever value as above
Great,
this will help!
thanks !!!
Bambu Support gives the answer, that calibration is not permanetly stored in the printer / ams.
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2023-09-26 16:19:08
Hello,
Thank you for reaching out to us. 
Currently, it is not possible to save this value.
Allow me to share this image from the Wiki:
[Extrusion Calibration in Bambu Studio | Bambu Lab Wiki]
Best regards,
Teddy
Bambu Lab Support Team
!!! Important in the code i made mistake k needs to be capital K other wise will not work had it in some places correct and some places incorrect as i do not use so often Bambu studio have not tested all the Profiles . Sorry
M900 K0.02 ; what ever value is for the PA or if profile edited with orca
M900 K[pressure_advance] ; only if saved with PA enable profile by Orca first
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Great !!! Thank You.