3D printing is the process where a 3D digital model is turned into a solid object. This technology was invented back in 1980 and since then it has been used and has been evolving since then due to the need of the products from it. This technology has made possible to print things or models with different types of materials. Some of the materials include metals, metal alloys, and thermoplastic, thermoplastic composites and ceramic.
3D printers can be categorized in accordance with what they make their model from. They include:
- The printers that form from a photoinduced hardening of resin.
- Printers that prints from a semi-solid or molten form.
- Printers that forms things from powder granules by fusing or binding them.
- Lastly, printers that form things by sticking metal plastic or papers sheets together.