What are the different types of 3D printing methods used for plastic parts?

Fused Deposition Modeling (FDM / FFF)

FDM is one of the most widely used technologies for plastic 3D printing. It works by extruding thermoplastic filament—such as thermoplastics, PLA, ABS, PETG, or TPU—layer by layer to build the final part. It is cost-effective and ideal for functional prototypes, fixtures, and end-use parts.

Neway Aerotech supports a wide range of standard and engineering-grade plastics for this method, making it suitable for industrial design, automotive, and consumer-goods applications.

Stereolithography (SLA)

SLA uses a UV laser to cure liquid photopolymer resins with extremely fine detail and smooth surface finish. It is preferred for high-precision models, miniature parts, and applications requiring tight tolerances.

Materials such as standard resin, tough resin, and flexible resin support a wide range of mechanical needs.

Selective Laser Sintering (SLS)

SLS uses a laser to sinter powdered plastics such as nylon (PA12/PA11) into strong, functional parts. Because the powder supports the part during printing, no supports are required, allowing highly complex shapes and excellent durability.

SLS is widely used in aerospace, automotive, and production-grade components due to its strength and thermal stability.

Material Jetting and Droplet-Based Processes

Material jetting systems deposit microscopic droplets of photopolymer resin to create parts with exceptional surface quality and multi-material capability. These technologies are used when color, transparency, or extremely high detail is needed.

High-Performance Plastics Printing

For demanding engineering applications, high-temperature plastics such as PEEK and polycarbonate (PC) can be printed using specialized extrusion systems. These materials offer excellent chemical resistance, toughness, and thermal stability, making them ideal for aerospace and medical components.