I have the same problem.
For me it helps to make vibration test settings or whatever it is called.
But those settings i can’t find in the Bambustidio on Windows.
Just in the Android app. So when printing via Windows i have this sound.
This doesn’t make sense. In either case the entire gcode file is transfered to the printer at the beginning of the print. In both cases the file was generated by Bambu Studio at some point.
On a related note, what infill pattern are you printing?
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When printing via Android app the printer sounds different. So there must be a difference.
Mine was doing the exact same. Nothing to do with the carbon rods. The belt was running the bottom flange of the back right pulley. I loosened and manually tipped the tensioner so the belt is running in the middle of the pulley and the noise went completely away.
Ken Print has a video on this on Youtube on belt alignment.
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