Help with cause of new sound

Bambu Lab X1 Series Bambu Lab X1C
1

my xic is hobby only - has about 800 hours on it - lite duty

I noticed a new sound and recorded it here - any ideas what it is and what I can do to address it ?
Here is link to 30 mb mp4 - https://bosshelp.com/tools/PXL_20250620_174332774.mp4
the sound starts at about 10 seconds in

2

Sorry I don’t have much to add but it sounds very much like my A1 and A1 mini do when they get up to full speed doing circular prints.

Is this not normal for X1/X1Cs?