Fused Filament Fabrication (FFF) and Fused Deposition Modeling (FDM) are 3D printing methods that build objects by melting and layering plastic filament. FFF is the generic term, while FDM is trademarked. Both are affordable and widely used for creating durable prototypes and functional parts.

Stereolithography (SLA) is a 3D printing technology that uses a laser to cure liquid resin layer by layer into solid objects. It offers high precision and smooth surface finishes, making it ideal for creating detailed prototypes and parts with fine features.

Selective Laser Sintering (SLS) is a 3D printing technology that uses a laser to fuse powdered materials, such as nylon or other thermoplastics, layer by layer to create solid objects. SLS printers are ideal for producing strong, functional parts with complex geometries, without the need for support structures, making them popular for industrial applications and prototyping.

3D injection molding is a manufacturing process where molten material, typically plastic, is injected into a 3D-printed mold to create parts. This combines the rapid prototyping of 3D printing with the high-volume production capabilities of traditional injection molding. It is commonly used for creating prototypes, small production runs, or complex designs, offering cost-effective, custom part production with fast turnaround times.