Funny lines at evenly spaced intervals

I printed this tube for a model rocket and once I had it off the printer I noticed these lines at almost perfectly spaced apart. Does anyone know what would have caused that or how to fix it?

oops I was going to put this on the original post but I forgot :face_with_raised_eyebrow:

It looks too close together to be a wheel, maybe a Lead Screw…

I checked the lead screws and I can’t see anything majorly wrong with them

I believe this was printed right after and it doesn’t have the same lines in it.
The wall on the tube is only about 1mm thick would it maybe be causing an issue in the slicer?:man_shrugging:

They’re just over 18mm apart

What printer are you using?

I’m using a Creality CR6 SE almost brand new and no mods so far

that is weird

It looks too uniform to be a slicer issue, I notice it happens at the same level that you have a zit. Is the printer “pausing” on these layers somewhere? Im suspecting that its pausing somewhere around where the zit is occurring.

It may be stopping there or something I’ll maybe try printing it again and watching it to see if I can see what it’s doing. Thanks for all the help so far.

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