Troubleshooting aid
Wet filament—or a different printing problem?
Combine observable symptoms, storage history, and material sensitivity to choose the next controlled test.
Next-test assessment
Evidence is limited
The selected observations do not strongly isolate moisture. Check the simple mechanical and profile causes before assuming the spool needs heat.
PETG moisture sensitivitymedium
Low-risk troubleshooting order
- Confirm the same file and profile printed normally before.
- Inspect nozzle condition, path friction, temperature, and retraction changes.
- Compare a small fresh-sealed sample if one is available.
- Use only the exact spool maker’s drying guidance and spool-safe temperature.
- Repeat the same test print and change only one variable.
Do not heat a spool from a generic symptom score.
Some spools deform below a material’s recommended drying temperature. Use the manufacturer’s exact instructions or respool onto a verified heat-safe spool.