Plastic 3D printing is the process of creating three-dimensional objects using plastic materials using 3D printing or additive manufacturing technology. In this process, an object is created from a digital design (usually a CAD or STL file), then the printer builds the object layer by layer until the final shape is formed. Unlike traditional manufacturing methods such as machining, which subtract or cut material (subtractive manufacturing), 3D printing only adds material where needed, resulting in more efficient material usage.
Plastic materials commonly used in 3D printing include PLA, ABS, PETG, Nylon, and TPU. Each material has different characteristics; for example, PLA is easy to print and environmentally friendly, while ABS is stronger and heat-resistant, making it often used for prototyping and functional components.