Sound coming from Mk3s printer and don't know what it is.  

RE: Sound coming from Mk3s printer and don't know what it is.

it sounds like a resonating noise, like there is a loose bolt or something somewhere in the printhead but I'm just guessing here... 

RE: Sound coming from Mk3s printer and don't know what it is.

Yeah, I concur with Olddutchie, it sounds like something is vibrating....  Check the nuts to ensure they are tight but don't got crazy.

Also, make sure to check what it is sitting on for vibration induced noises as well....  It is hard to tell from a video and without seeing it, but it could be a screw or bolt in whatever it is sitting on, especially if it has drawers with things in it.  perhaps even move it to a solid surface to see if it continues to rule out whether it is the printer or what it is on...

RE: Sound coming from Mk3s printer and don't know what it is.

There's a known vibratory noise that comes from the LCD slapping the plastic frame when something gets to resonance.  Try pressing on the lcd when  this is happening, and if it helps you can pop off the LCD panel, add some sponge tape to the top of the LCD panel so it spaces the lcd away from the plastic housing.

RE: Sound coming from Mk3s printer and don't know what it is.

Thanks for the suggestions guys. I talked with someone from tech support too and they said something about vibrations noises too but they didn't say where it could be. I placed it on the ground and it still happened and I placed it on silent mood and it went away and it put it back on the table and it didn't do it again. I've only had this problem with the triangular infill.