Layer height
Layer height is the thickness of each printed layer, which controls the trade-off between surface detail and print time.
Layer height sets how thick each deposited layer is. Thinner layers produce smoother surfaces and finer detail but take longer because more layers are needed; thicker layers print faster but show more pronounced lines.
Choosing a layer height balances quality against speed for the job at hand. A display piece may use thin layers for finish, while a quick functional part can use thicker ones.
Slicer
A slicer is software that converts a 3D model into the layer-by-layer instructions a 3D printer follows to build the object.
Infill
Infill is the internal lattice structure printed inside a 3D object to give it strength without filling it completely solid.
FDM
FDM is a 3D printing method that builds objects layer by layer by extruding melted thermoplastic filament through a heated nozzle.
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