It's almost certainly belt related. Look for black powder dust below the 4 corners of the printer. Particularly on the steppers.
I've seen printers that make a horrible noise that still print great a year later.
I would give it at least another 1000 hours of printing and then there is a block and pulley kit that replaces the 4 blocks and the 4 long belts.
Another thing to check is that the long belts are exactly aligned above or below the 4 long rods. But often the noise is from a short belt which is harder to check if it's perfectly aligned.
Also put one drop of oil on each of the 6 rods. Use any light oil like 3-in-one oil or sewing machine oil. See if this improves the friction (push head around by hand before and after).
Anyway I wouldn't worry about it unless the noise is driving you crazy.
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Framar 38
You should contact your reseller. Might needed a repair (stepper motor bearing ???)
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