Clean the Nozzle with an Acupuncture Needle

Tools: 0.4mm acupuncture needle, protective gloves, tweezers.

Steps:

1. Heat the nozzle to 10°C above the standard printing temperature.
2. Carefully insert the acupuncture needle into the nozzle orifice.
3. Move the needle up and down to break up carbonized plastic.
4. Use tweezers to remove any dislodged debris.
5. Extrude a small amount of filament to clear the passage.

Verification: The filament should flow smoothly and consistently from the nozzle.