Defect on the upper part of my print

Hello everyone,

I have a flaw that comes back from time to time on some prints, like in the photo, some kind of “paté” but only on the upper part of the print, all the rest of the print is flawless, I can’t explain it.

I printed with PolyTerra PLA, the profile is already present in the BambuLab slicer.
I put 0.12 mm thin profile.
0.4 mm carbon nozzle.
Attached is the placement of the object to be printed.


f anyone has an idea why I’m a taker! THANKS

The model seems very thin and high. Maybe vibration when printing the top. Try to improve supports to rigidifie the part.

1 Like

I had good feedback on the FR forum “LesImprimantes3D” It’s related to the filling of the part (probably), the patern and the same as the holes in the grid when I look at my defects and my filling, attached my filling at 15%.


You can see that this is identical to the position of the void in my grids. To solve the problem I have to increase the filling, strange that the slicer did not see the thing coming.