Printing problem-who can help me?

[n.moschin]

Hello everyone, I have a recurring problem on every print...

It seems a periodic disturbance to the mechanics but it's all ok.

I will upload a pic of the problem because it is difficult to describe the ridges that form.

Anyone have the same problem or know how to fix it?

Thanks
N.M.

[ggg666]

Hello everyone, I have a recurring problem on every print...

It seems a periodic disturbance to the mechanics but it's all ok.

I will upload a pic of the problem because it is difficult to describe the ridges that form.

Anyone have the same problem or know how to fix it?

Thanks
N.M.

Hi,
Looks like there is excessive extrusion or your Z axis has a abnormal movement.
You can refer to this article to make some troubleshooting:
https://www.simplify3d.com/support/prin ... eshooting/

[n.moschin]

Not solved yet.
I tried to setting mechanics but nothing changed.

[William]

You can decrease the value "extrusion multiplier" and check if your all your Z rods are straight.
And spread some lubricating oil on Z threaded rods.