Injection moulding is a versatile manufacturing process used to create parts by injecting molten material into moulds. This method can be employed with a wide range of materials, with thermoplastics and thermosetting polymers being the most common. Designing plastic parts involves considering various factors, including functionality, structural integrity, and the moulding process itself. Following fundamental principles of injection-moulded part design leads to parts that are easier to produce, assemble, and offer enhanced durability. Injection moulding is the preferred method for manufacturing plastic components in large quantities.