I don’t think the bushings are defective, as it is a problem that many users have. Something misaligned or something loose I think is an option. I haven’t found a way to fix it yet.
Is the same sound. If you have time can you try to increase speed of first layer and check again?
Does anyone know which screws Kochlewsky was talking about?
Removing the front casing, below in the nozzle area you can see 2 screws holding the bushing. I also loosened them but the noise persists. I tested removing the XZ belt and moving the head by hand at different speeds, the noise disappeared, which gives me the impression that the bushing is not a problem. I reassembled the belt, I made it looser, more tense and the noise is there again. Could it be that the motors reflect this noise on the X axis? It’s a mystery.
Ok, thanks. The screws were very tight, too tight in my opinion. When I loosened them and left them like that the sound became softer. I wonder if something was damaged by this. The bearings themselves or their mounting.
You can try to loose small hex screws on left and right side of the printing head. It screws, as I understood, needs for tention of the belts xz core system.
But be careful: when tention has been changed, level relative to Z axis of hot plate will be changed too.
same problem and no reponse from Creality…
I have the same problem and the “customer Service” is really jacked up. Very slow or no response on email, the telephone answers is some language that I could not recognize and then after about the fourth try I got English then they hung up after about 5 Min of waiting. The chat box takes so long for them to reply that it times out. I am seriously considering sending it back. If I could only contact customer service.