Is this Ghosting and would this fix it?

I’ve been having a lot of fun with my P1S but have notice what I think is ghosting and from my research I think the belts in the back are sitting too low? As I print the belts aren’t wobbling up and down but are sitting very low.

For some context, I’m printing on a P1S with a .2 nozzle set to 0.8 layer hight on bambu matt PLA. The printer itself is placed on a Solid work surface.

Also the model was made by Myself, it has quite a high poly count which I’ve heard rumour can cause issues.
Any help from the community would be greatly appreciated.


Have you performed the belt tensioning maintenance yet? That is where I would start.

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sorry i forgot to put that in the post but i have

That’s called “ringing”. Belt tensioning might be an alternate but there are other places you might investigate too.

What I might suggest is to run a quick diagnostic by trying to re-create the phenomena using a simple cylinder and cube primitive. This will save time and filament and allow you to run multiple tests rapidly.

In case you’re not familiar with that. Right-click and pick it from the menu.

A less likely influence could be the underlying wall thickness and/or internal infill pattern. This could mimic ringing if the walls aligned at just the right boundaries internally.

Here is an exaggerated example of what I mean.

If you haven’t done so, try running to calibration tests using Orca Slicer.

The first is a pressure advance test.

The second is Vertical Fine Artifact Test(VFA) Please note that VFA testing is of limited use in Bambu Lab printers. It was intended for Prusa printers and others that provided tunable input shaping. Bambu does not generally need it. But if you wanted to experiment, you can look at the tutorial in the Orca Slicer link for Jerk Deviation and try that out. In all honesty, I’ve never seen it affect a bambu print but it is noteworthy experiment.


Sorry for my late reply but thank you I’ll give it a try. I haven’t tried orca slicer!