3D Printing Basics

3D printing (additive manufacturing) builds parts layer by layer from a digital 3D model. Unlike subtractive manufacturing (CNC), 3D printing creates virtually no material waste and can produce geometries impossible with traditional methods.

Common Technologies

• FDM — Thermoplastic filament melted and extruded layer by layer; most economical
• SLA/DLP — Liquid resin cured by UV laser or projector; highest detail and surface finish
• SLS/MJF — Nylon powder fused by laser or infrared; strong, functional parts
• DMLS/SLM — Metal powder fully melted by laser; production-grade metal parts