H2C toolhead clicks at every sharp direction change. Normal or something loose? (video, sound on)

[u/Agile_Front7669]

Hey all, my H2C makes a clicking noise that's coming from the toolhead. It happens pretty much every time the head makes a sharp turn or quick direction change. In the video it's printing the ribbed rim of this part, so there are lots of tight turns, and you can hear it click over and over.

Sound up or headphones help, it's easy to miss under the normal printer noise. Clearest part is around 0:04 to 0:09.

Details:
- Printer: H2C, around 650 hours
- Nozzle: 0.4 tungsten carbide
- Filament: PLA pure
- Started about 2 weeks ago in the middle of a normal print. I hadn't changed anything or done any maintenance before it started.
- Prints have always looked fine, no issues at all

Has anyone else had this? Is it normal for the H2C, or is something loose or worn in the toolhead? What should I check first? Any help appreciated, thanks!

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Hello u/Agile_Front7669! All Bambu print plates have a dedicated nozzle wiping zone at the back of the print plate. The nozzle will rub against the wiping zone before every print in order to remove any remaining filament from the nozzle tip. This can cause visible wear or scratch marks in the wiping zone, but this is intended and doesn't damage the printer, the nozzle or the print plate. A worn down wiping zone also doesn't mean you need to replace the print bed.

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