BLOBS / ZITS ON BAMBU LAB P1S WITH PETG- COMMUNITY FIXES
50 posts in our dataset matching Bambu Lab P1S + PETG + blobs / zits.
We pulled the 50 matching cases from r/FixMyPrint and ranked the fixes by how often they were OP-confirmed or top-voted. Use these as a starting point - the deterministic engine on Fix My Print can adjust your specific slicer settings.
TOP CONFIRMED FIXES
Confirmed on Bambu Lab P1S with PETG
- #1
Dry the filament
Confirmed by 2 usersSuggested in 19 posts33% success rate - #2
Reduce retraction distance
Confirmed by 1 userSuggested in 11 posts13% success rate - #3
Calibrate flow rate
Confirmed by 1 userSuggested in 7 posts25% success rate - #4
Tune pressure advance
Confirmed by 1 userSuggested in 4 posts33% success rate - #5
Increase nozzle temperature
Confirmed by 1 userSuggested in 2 posts50% success rate
Full Failure Guide
Want the full breakdown of blobs / zits - what causes it, how to diagnose it on the bed, and the fixes by cause? Read the failure guide.
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Full specs, filament compatibility ratings, and the known quirks of the Bambu Lab P1S - including which materials it handles well and where it tends to struggle.
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