3D printing, also known as additive manufacturing, is a technology that creates physical objects by "layering" materials. It overturns the traditional "subtractive manufacturing" model. It first slices the digital model, and then uses materials such as plastic, metal, and resin, and builds the object layer by layer through processes like fused deposition and photopolymerization.
Today, 3D printing is widely used: in the medical field, it can customize dentures and orthopedic implants; in industry, it can quickly produce prototype parts; in the creative industry, it can print personalized figurines. Its advantages are significant: no need for complex molds, low cost and fast speed for small batch production, and the ability to achieve complex structures that are difficult to achieve through traditional methods.
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