Hello Guys,
Is it normal for P1S to make sounds as provided in the video?
You can hear it cleary in 6 and 12 second.
Is something loose ?
Welcome to the forum.
It seems like it is doing the noise at the same place for each layer. Are you using grid for infill? Maybe try with gyroid.
Of course i could tell you to clean the carbon rods but usually that noise is from longer moves such as moving the toolhead from one side to the other. But it doesn’t hurt to clean them either.
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I’m going with
I cleaned rods before just to be sure. I think it just doesn’t like that specific move. I’m priting another part now and issue is not there.
Seems like its very specific to the movement its doing.
That looks like grid. Maybe try the same model with gyroid infill. Grid is default in Bambu Studio.
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Thanks for your suggestions. It led me to right place.
As it turns out the sound doesn’t come from the printer at all. It’s coming from the top glass vibrating while motors are moving fast on specific curve.
I’ve added thing layer or silicone there. 0 issue now 
Thank you!