Quick diagnosis
Tune Neptune 4 Pro stringing using filament drying, temperature, retraction, travel speed, and pressure advance checks.
Likely causes
- Wet filament
- Temperature too high
- Retraction not tuned
- Travel speed too low
Step-by-step fix
- Dry the filament first.
- Run a temperature tower.
- Tune retraction in small steps.
- Check pressure advance after flow is stable.
What to check before changing more settings
Only change one variable at a time. Save your current slicer profile before testing, use a small repeatable test print, and compare the result before moving to the next adjustment.
Helpful gear to check
These are contextual tool links, not required purchases. Use them only if they match your printer and the problem you are solving.
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Elegoo Neptune PEI Sheet
Check compatibilityUseful for this fix path. Confirm size, printer compatibility, seller, price, and return details before buying.
View on AmazonAmazon searchNeptune 4 Pro Nozzles
Check compatibilityUseful for this fix path. Confirm size, printer compatibility, seller, price, and return details before buying.
View on AmazonAmazon searchSilicone Bed Spacers
Check compatibilityUseful for this fix path. Confirm size, printer compatibility, seller, price, and return details before buying.
View on AmazonAmazon searchFilament Dryer
Check compatibilityUseful for this fix path. Confirm size, printer compatibility, seller, price, and return details before buying.
View on AmazonContinue from this guide
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