Easy 10-20 min PLAPETGTPU

Nozzle Oozing

Molten filament leaks from the nozzle before printing or during pauses.

Nozzle Oozing example 1
Nozzle Oozing example 2
Nozzle Oozing example 3

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Likely causes

Nozzle temperature is too high
Lower standby or print temperature. Oozing usually gets worse when the nozzle waits hot for too long.
Filament is wet
Dry the filament and store it sealed. Wet material can foam and push plastic out of the nozzle.
Retraction or wipe settings need tuning
Increase retraction slightly and use wipe or coasting features carefully if your slicer supports them.

Recommended settings by material

MaterialNozzleBedFan
PLA 195-210 C50-60 C80-100%
PETG 230-245 C70-80 C30-60%
TPU 220-235 C40-50 C30-50%
ABS 240-260 C95-110 C0-30%
ASA 240-260 C95-110 C0-30%

Prevention tips

Change one setting at a time and reprint a small test piece.

Keep filament dry and store open spools in sealed bags or dry boxes.

Clean the build plate regularly and verify the correct slicer profile before long prints.

Related problems

StringingWarpingFirst Layer Not Sticking

Last reviewed Jun 15, 2026. Troubleshooting content is for reference only.