Slicer
A slicer is software that converts a 3D model into the layer-by-layer instructions a 3D printer follows to build the object.
A slicer takes a 3D model (such as an STL) and "slices" it into horizontal layers, then generates the toolpaths, temperatures, and movements the printer needs. It is the bridge between a digital model and a physical print.
Slicer settings — layer height, infill, print speed, supports — largely determine print quality, strength, and time. Dialing these in is a core making skill, and the same model can succeed or fail based on them.
G-code
G-code is the set of text instructions, produced by a slicer, that tells a 3D printer exactly how to move, heat, and extrude.
Infill
Infill is the internal lattice structure printed inside a 3D object to give it strength without filling it completely solid.
Supports
Supports are temporary printed structures that hold up overhanging parts of a model during printing and are removed afterward.
Layer height
Layer height is the thickness of each printed layer, which controls the trade-off between surface detail and print time.
Put Slicer to work this week.
Knowing the term is step one. The business kits ship the systems and templates that turn concepts like this into a running operation.