How to improve top finishing layer's print quality


#1

Lets say we are printing a cube of 5cm x 5cm x 5cm

Even with High printing quality settings, the top layer seems to look a bit detached from the side walls, and not as smooth as the vertical layer. Is this a 3d printing limitation in general or there are settings to be tweaked to improve this? thanks


#2

Sound like this? How to infil solid?