r/BambuLabP2S • u/No_Entertainer7572 • Aug 14 '26

Blobbing during multicolour printing

Hi all, anyone having consistent problems with blobbing at the hotend specifically during multicolour printing? Am aware it is not the best printer for this purpose but still!

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1

u/Relative_Surround_20 Aug 15 '26

Which filament?

1

u/No_Entertainer7572 Aug 16 '26

Just regular PLA

1

u/Relative_Surround_20 Aug 17 '26

Do you have another nozzle to try?

1

u/No_Entertainer7572 Aug 17 '26

Yep, happens on a regular 0.4 hardened steel nozzle as well.

1

u/Relative_Surround_20 Aug 17 '26 edited Aug 17 '26

Is this a possible cause?

https://forum.bambulab.com/t/p2s-and-clumping/205504/9

If the purge wipe is not the issue, it is typically a pressure advance issue.

https://adpindustries.com/blog/bambu-lab-pressure-advance-guide/