Problem while making round lines

[xM4TU (Gonçalo)]

Hi there, im kind of new to Laser Engraving, and im strugling with these lines in LightBurn, im not sure where the problem came from, i cant even make circles.
I have the Neje Master 2 Max with N40630.
I already tight the belts and the problem stays the same, anyone can help me out?
Thanks

[killrob (roberto ceccherini)]

try to lower acceleration

[xM4TU (Gonçalo)]

I did it, the issue is exactly the same if was 3000 speed and 50 speed

[killrob (roberto ceccherini)]

and in what axis is the issue? X or Y

[xM4TU (Gonçalo)]

I cant find yet, i already untight all the belts and always get worse, then tight one by and in the ent after do all again this issue presists

[JohnJohn (John Johnson)]

Since you have checked the belts, wiggle the engraver head and see if anything feels loose.

Also a small set screw or grub screw can be loose in the drive cog. If the problem is getting worse with each cycle a loose fastener may be what you’re looking for.