Term

Meaning

STL File

A common 3D model file format used for 3D printing. It defines the shape’s surface geometry.

Slicer

Software that slices a 3D model into thin layers and converts it into printer instructions (G-code).

Layer Height

The thickness of each printed layer; smaller heights give smoother prints.

Infill

The internal structure or density of a 3D print, controlling its strength and weight.

Supports

Temporary structures added to help print overhangs or bridges in the model.

G-code

The set of machine commands a 3D printer follows to create an object.