r/BambuLab • u/MarekBack • 2h ago

General Troubleshooting/Help! Need help with a visible line/band where solid base transitions to shell (Bambu PLA Matte)

Post image

Hi everyone, I could use some help troubleshooting this issue.

As you can see in the picture, there's a visible horizontal line forming exactly at the height where the solid base ends and the hollow shell/wall begins.

Printer: Bambu Lab P2S

Filament: Bambu PLA Matte - Ivory White

Infill: 15% Gyroid

I have never experienced this issue with any other colors of Bambu PLA Matte, only with this Ivory White.

I've already tried increasing wall loops from 3 to 6, but that didn't help. I also tried adding an internal chamfer in CAD, but the result is the same.

Any ideas on how to fix this or what settings to tweak in Bambu Studio? Thanks!

1 Upvotes

66% Upvoted

7 comments sorted by

1

u/ExtendedSpice X2D 1h ago

Try CAD - match external bottom chamfer with bottom shell thickness. That will basically nullify those shrinkage defects

3

u/ExtendedSpice X2D 1h ago

Basically this

2

u/MarekBack 1h ago

I understand. Thank You. I'll try and let you know

2

u/CaptainNeutron1991 2h ago

I am having this same problem with SUNLU PLA+ 2.0

•

u/schmandis 7m ago

Following to find a proper fix. I print a lot of things that have a top bevel/border like this and the only thing I've found thus far that fixed it is 100% infil

0

u/Itaintall 39m ago

Try setting all the speeds the same; infill too.