Travel Troubles: Fixing Your Nozzle Clip Woes!

At present, I’m producing a model with my Bambu Lab A1; this printer has functioned without any problems for several months until now.

During the printing process, I detected a loud vibrating sound, and upon examination, I discovered that the nozzle is hitting and scraping against the layer just printed while the toolhead is moving back to its starting position.

I’m using a very minimal layer height (0.08mm), so I can see why this collision is taking place, as the alteration in Z position is significantly smaller, necessitating a greater level of precision.

Is there a setting in the slicer that I need to modify to adjust the Z position? Or perhaps the printer requires tweaks or maintenance on the Z axis?

Any assistance would be greatly valued,

Thank you.

This alone is not the sole reason.

Could you provide some images before and after slicing, possibly the 3MF file?

Hello, I will attach all of those below. I also recorded a video of the printer during the malfunction, but I’m unsure if I can send it here.

A1antiglarecover.3mf (1.1 MB)

Thank you.

Create a private YouTube video and share that link.

Why is this printed at 0.08mm? It doesn’t seem to require that level of detail.

Great suggestion, YouTube link:

Regarding my reasoning for the 0.08mm, I appreciate prints with nearly invisible layer lines, thus when time isn’t an issue, I prefer achieving that high-quality feel, even if it’s not necessary. Additionally, I have other designs on the same plate requiring higher complexity and quality, but my issue only arises with this specific object mentioned in the previous post.

Do you observe any flaws in the print on the right side where the nozzle seems to scratch along the depth of the object?

Are the hidden sections not visible to the camera flat against the bed?

I didn’t notice any significant markings on the print following the scraping sound, which made me question if the noise was actually originating from another area. However, after reducing the printer’s speed to 50%, I could almost see that the part was indeed making contact with the nozzle.

Could you please clarify your second question?

Thank you.

Do you notice anything that should be pressed flush to the bed during printing displaying any visible lifting or warping?

Essentially, is part of the model elevating, causing the noise to happen?

This can sometimes occurif the component becomes slightly detached while printing.

Frequently at locations where there are sharp edges.

I closely inspected it, and the part appears to be completely flat against the build plate and bonded correctly. Additionally, the noise appears to be increasing in volume, as if it is getting more misaligned in the Z-axis with every layer produced.

I’ve just examined this idea, and it seems like a clever adjustment to attempt.

Thank you.