3D printing is a form of additive manufacturing that uses digital files and materials cartridges to quickly print 3D objects on a machine connected to a computer. Charles Hull developed the first 3D printing technique called stereolithography in 1984 and obtained a patent for it in 1986. Since then, different 3D printing technologies have been introduced that use various materials like plastics, metals, and ceramics in different printing processes. 3D printing offers benefits like customization, rapid prototyping, low production costs, and opportunities for employment and organ transplants but also has limitations and risks regarding intellectual property, security, size, and material restrictions.