PLA (Polylactic Acid) is currently one of the most prevalent and user-friendly bio-based, eco-friendly materials in the field of 3D printing. Its processing is simple and efficient, with FDM (Fused Deposition Modeling) serving as the most commonly used printing technique for the material. The entire workflow comprises four stages: modeling, slicing, printing, and post-processing. Characterized by excellent formability, a wide range of color options, and superior environmental credentials, PLA is widely utilized in education, rapid prototyping, the creation of cultural and creative products, and the manufacturing of lightweight functional components.