Layer height

Layer height is simply how tall each individual layer is as the printer builds a model from the bottom up, usually measured in fractions of a millimeter. A common default is around 0.2mm, while finer settings like 0.12mm produce smoother surfaces and more visible detail on curved shapes, and taller settings like 0.28mm or 0.32mm finish faster at the cost of more visible layer lines.

This setting matters because it is one of the biggest levers for balancing print time against visual quality. A tall vase or enclosure that does not need fine detail can print much faster at a coarser layer height, while a miniature or a part with lettering usually looks noticeably better at a finer setting, even though it takes longer to finish.

Layer height is limited by nozzle diameter, since a very fine layer through a large nozzle wastes the nozzle's capability, and a tall layer through a small nozzle can cause poor extrusion or weak adhesion between layers. A frequent mistake is choosing the finest layer height available for every print without considering that most of that detail will not even be visible on a simple functional part.