Nozzle Clogged
Anycubic 3D Printer (FDM)
Severity: ModerateWhat Does This Error Mean?
A clogged nozzle on the Anycubic Kobra stops filament from flowing properly. Symptoms: gaps in prints, no extrusion, or thin strands. A cold pull clears most clogs without disassembly.
Affected Models
- Anycubic Kobra 2
- Anycubic Kobra 2 Pro
- Anycubic Kobra 2 Max
- Anycubic Kobra 2 Neo
- Anycubic Kobra Neo
Common Causes
- Printing temperature too low — filament partially solidifies in the nozzle
- Filament left in the nozzle at high temperature for too long
- Switching between incompatible filament types (e.g., PLA then PETG)
- Wet or poor-quality filament leaving residue
- Debris or carbon build-up from repeated use
How to Fix It
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Heat the nozzle to printing temperature and manually push filament through.
Heat to 200°C (PLA) or 230°C (PETG/ABS). Push filament in by hand from the extruder. If material flows out, the clog may clear itself.
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Perform a cold pull to remove the clog.
Heat the nozzle to 200°C, push filament in, then cool to 90°C. Grip the filament firmly and pull it out in one steady, swift motion. Repeat 2-3 times. The tip of the pulled filament should come out cone-shaped with debris on it.
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Use a 0.4mm cleaning needle to clear a stubborn clog.
Heat the nozzle to 200°C. Insert the needle into the nozzle tip from below and gently push upward to break up the clog. Anycubic Kobra kits include a cleaning needle.
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Replace the nozzle if the clog will not clear.
Anycubic Kobra uses standard MK8 nozzles. Heat to 200°C before unscrewing. Never remove a cold nozzle — it will damage the hot end. Replace with a brass 0.4mm nozzle.
Frequently Asked Questions
What temperature should I do a cold pull at?
Heat to 200°C for PLA, push in filament, then let it cool to 85-95°C. At 90°C the filament is semi-solid and grips the clog when pulled. For PETG, use 230°C down to 120°C.
How often do Anycubic Kobra nozzles clog?
With good filament and proper temperatures, rarely. Wet filament, cheap filament, and printing too cool are the top causes. Store filament in a sealed bag with silica gel to prevent moisture clogs.