Home Tech What is 3D Printing? How Does 3D Printing Work?

What is 3D Printing? How Does 3D Printing Work?


3D printing is a revolutionary technology that has recently caused a stir due to the clever concept used in its invention and the enormous potential that affects current manufacturing processes. Each of these coatings is a horizontal piece of the very finely cut final object that needs to be made by a printer.

What is a 3D printer?

3D printers are used to create 3D objects and entities by printing. This process is also known as the additive manufacturing process. In these printers, a continuous film and a layer of a particular material are placed under computer control.

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How does a 3D printer work?

These printers first develop the basic design of the objects you want to form. The plan is made from a CAD file that applies a 3D modeling program for making new projects, or it can also use a 3D scanner to copy the exact model of the object and also build 3D digital files of the object. These scanners bring together different technologies to make 3D models.

To create digital files for printing, the software used in 3D modeling divides the final model into millions of layers. When you upload these slices to the printer, you can create the final object by layering one slice on top of the other. The 3D printer studies each 2D slice of the image and makes the final object, making a 3D model of the image.

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A technology used in 3D printers

Different types of 3D printers use different technologies. There are a number of methods available for printing that differ from the way the build layer is built to complete an absolute entity. While some techniques use a melting process to produce layers that utilize selective stratification or fused deposition processes.

One of the most widely used techniques is stereolithographic. It also utilizes other technologies such as Vat photopolymerization, material jetting, sheet lamination, powder bed blending and the like.

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3D modeling

Printable 3D models can be shaped using CAD packages or 3D scanners using ordinary digital cameras and photogrammetric software. The 3D scanner evaluates and saves the digital data and makes it the shape of a real object.

Based on this technique, a three-dimensional model can be generated. Regardless of the 3D modeling software used, this 3D model is converted to. STL or .OBJ format to allow the software that prints the object to make it readable.

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Before printing a 3D model from an STL file, you must check the file for multiple errors. This step is called repair. The 3D printer tracks the document and the orientation on it and places multiple layers of liquid, powder or paper material to create a model from a series of cross sections. Several materials can be applied through printing nozzles such as plastic, sand, metal or sometimes even chocolate. These layers corresponding to the various cross sections of the CAD model are then automatically joined or combined to give them the final shape.

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3D printer application

3D printing has many applications in various industries such as automotive, aerospace, aerospace, bio printing and healthcare equipment. 3D printing is also very useful in creating everyday objects and personal projects.

The biggest advantage of these printers is that they can make almost any shape and geometry of any solid. Then, the time it takes to print a 3D model of any object depends largely on the size and structure of the object to be printed. Printing any entity can take hours or even days. It also depends on the method used by the printer and the complexity of the model. Additive system technology can reduce the amount of time you waste and help print objects in a matter of hours.

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3D printing service

3D printers are expensive and not everyone can afford them for personal purposes, so there are companies and companies offering 3D printing services. There is also an online 3D printing service that provides 3D printing services at an economical price range and can print and transfer any object in the digital files you upload to its website.

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3D printing industry

The global 3D printing industry is expected to grow from $3.07 billion in revenue in 2013 to $12.8 billion in 2018, and by 2020 global revenues will exceed $2.1 billion. The 3D printing industry contains many forms of technology and materials. When most people think of 3D printing, they think of a simple desktop FDM 3D printer, but this is not the whole picture. 3D printing can be divided into metal, fabric, bio and other industries as a whole. Therefore, it is important to think of it as a cluster of diverse industries with countless different applications.

In the first half of 2017, Sculpteo’s 3D printing status reported its use in the industrial sector as follows:

  • Consumer goods (17%)
  • Industrial products (17%)
  • High technology (13%)
  • Service (9%)
  • Healthcare industry (7%)

In the third quarter of 2017, Materialise reported an increase in revenue in its software, medical and manufacturing sectors. Compared with the previous year, total income increased by $6 million. This shows that as the field becomes larger and larger, there are more and more applications in the industry.

3D printing is increasingly intertwined with the day-to-day operations of the enterprise. In terms of prospects, CEOs will definitely see 3D printing as an advantage. Most people expect spending to grow by 72% in 2018, while 2017 is expected to grow by 55%. At this stage, most companies focus on R&D and prototyping.

As of 2018, the FFF / FDM 3D printer is the most commonly used 3D printer, and SLS ranks second. Although, metal printing has been climbing for many years. This is to be expected, as there are a large number of R and D in the metal of additive manufacturing.

3D printing examples and applications

Applications include rapid prototyping, building scale models and models, 3D printed prosthetics and movie props.

Other examples of 3D printing include reconstruction of fossils in paleontology, reproduction of archaeological artifacts, reconstruction of bones and body parts in forensic pathology, and reconstruction of evidence of severe damage from crime scene investigations.


Educators and students have long used 3D printers in their classrooms. 3D printing enables students to implement their ideas in a fast and cost-effective manner.

Primary and secondary school

3D printer manufacturers have played a more direct role in education. Companies often adopt programs that promote technology. These courses are a cheaper way for schools to make 3D printers for use in the classroom.

The program provides schools with 3D printers in exchange for blog posts or classroom instructional samples on teacher experience. This allows companies to demonstrate what 3D printers can do in an educational environment.

Similarly, some companies offer school programs to teach children how to use (and sometimes build) them. This is important because many schools may not have anyone with extensive experience in the field.