3D printing is a technology that was first created in the 1980s. From the very beginning, 3D printing continued to be developed and used widely in various countries.

3D printing is basically very different from printing in general, the output produced is also different, where printing generally produces 2-dimensional writing or images, while 3d printing uses a special machine to produce tangible output according to the 3d image that we have designed.

With the development of increasingly modern technology, 3d printing machine products are now increasingly in demand by many industries, because basically 3d printing is not only used to make special products, but can also be used for ongoing marketing purposes.

The types of 3d printing are divided into 4, including:

• This type of stereolithography (SLA) 3d printing works by dropping the heated material layer by layer;

• Selective Laser Sintering (SLS) in this type is similar to the first one, only different for this type using liquid;

• Fused Deposition Modeling (FDM) this type of 3D Printing in its printing uses plastic materials and is the most cost-effective, environmentally friendly type, and the print time is relatively fast compared to other types, the only drawback is that it has a rough surface.

• This type of Digital Light Processing (DLP) has similarities with the previous type, namely SLA, because both use liquid plastic materials that will harden when exposed to light, the difference is only in the type of light, SLA uses UV light while for DPL it uses layer projector with digital lighting that is claimed to be able to print all layers so that the process is faster than others.

In addition, there are also uses for 3d printing. Here are the uses of 3d printing, among others:

*Construction and Manufacturing Sector

The use of 3D printer machines in this field is to print building parts in miniature. Although 3D Printing is not completely an alternative to the construction process, at least it can help architects because it can make it easier to make miniature designs.

*Health

In the field of Health, 3d printers are used to make organ parts of a patient who have lost part of their organs, which aims to help patients to be able to move properly to have all parts of their organs. Example: making fingers/toes, robotic hands, prosthetic limbs, and others.

*Art Field

The use of 3d printing in the field of art can be applied to children's toys. But the most significant use is used in the film world where many strange objects are used to match the theme of the film being made.

*Automotive field

Serves to make vehicle spare parts. Generally, manufacturers use 3d printing and it is used to make prototypes that they will make, for example brakes, cylinder heads, vents, and others.

*Fashion field

3d printing tools in the fashion industry are generally used for the purposes of designing the clothes they will make. The designers use 3d printing in the hope that they can make details about the product to be made and can meet the needs and desires of the market. In addition, it is also used for prototype accessories and jewelry.

*Field of education

The benefits of 3d printing in the education sector are generally used to make teaching aids, which can make it easier for students to capture what the teacher explains.

From the explanation above, we can find out the types and uses of 3d printing in the fields of technology and science. In addition, we also know that 3d printing is also very much needed in the industrial world whose functions are very varied. Thus, hopefully the explanation above can help friends to learn and get to know more about 3d printing.