Layer adhesion problem in infill pattern only

[JonRaymond]

Check the thermal grease on the nozzle as it can degrade/dry out over time and you won’t get as good of heat transfer when the nozzle is printing fast.

Reference.

Thermal Grease: Small Cause -> Big Effect on printing results

Since most Bambu Lab printers are the same age, I can imagine that this problem could affect several people here in the forum. My printer has been producing imperfect prints from time to time lately. After 3 weeks of vacation I wanted to use it yesterday and this is what I got as a result: [IMG_0421 2] So I cleaned the nozzle according to the instructions and was in good spirits when the next print looked pretty decent at first glance. When the printer stopped extracting filament after a …