3D printing uses additive manufacturing processes that use gradual creation or addition of materials to form an object. 3D printing is widely used for manufacturing prototypes in many industries, including automotive, aerospace, consumer goods, and medical device since it produces prototypes with complex shapes relatively quickly and at a significantly lower cost than traditional methods.
There are a few different 3D printing methods, but the most common 3D printing methods that use light to form the desired 3D shapes are stereolithography (SLA), UV inkjet, and digital light processing (DLP).
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