• June 21, 2024
  • Shatou, Changan, Dongguan, CN
3d printers

How do 3d printers work?

3D printing technology is an innovative additive manufacturing technology that can directly transform digital models into physical objects. This technology achieves high-precision and high-efficiency object manufacturing by printing and stacking different materials layer by layer.

This article introduces the materials, model files and post-processing of 3D printing in detail.

1, Choosing the right 3D printing material

Before 3D printing, it is very important to choose the right material. Different 3D printers are suitable for different materials, so you need to choose exactly what 3D printing material you need. Commonly used 3D printing materials include plastics, metals, resins, and ceramics. By choosing the right material, you can get the best printing effect.

2, Prepare 3D model files

In order to 3D print, it is necessary to have a 3D model file. These files can be created with computer-aided design (CAD) software or a 3D scanner. In addition, ready-made 3D model files can also be downloaded from the Internet, or created by the designer himself. To ensure smooth 3D printing, files must be saved in OBJ or STL format.

3, Preparing the 3D printer

Before you can turn on your 3D printer, to ensure a successful print, you need to have the equipment functioning properly and have the materials and fixtures set up correctly.

  • Install the printer driver: Connect the printer to the computer and install the appropriate driver on the computer.
  • Printer firmware settings: For most 3D printers, you need to make firmware settings on the printer interface, such as heat bed temperature and print speed.
  • Printer Slicing Software Setup: Use the slicing software to convert the 3D model into a G-code that can be read by the printer. You need to set the printer and material parameters, such as layer height and fill density.
  • Manual Extruder Test: Manually operate the extruder and adjust its profile to ensure that the material enters the nozzle correctly.
  • Print Bed Calibration: In order to calibrate the flatness of the printing bed, it is recommended to use a reference plate for operation and adjust the screw according to the actual situation.
  • Temperature calibration: Adjust the temperature of the print head and hotbed to your needs and calibrate using a thermometer.
  • Printer Tuning: Make your first print or test print by adjusting the print speed and temperature in order to get the best print quality.

4, Adjusting the 3D model file

Adjustments to model files are often required prior to 3D printing. Because extra details or poor geometry may cause printing failure, it is necessary to use 3D printing software to analyze the model and perform operations such as scaling, removing, or cropping certain parts of the model to optimize the quality of the model and printability.

5, Importing the 3D model file into the 3D printing software

Import the 3D model file into the selected 3D printing software, make the necessary adjustments and edits, and configure detailed printing parameters in the software, such as layer thickness, fill density, support structure, etc.

6, Start 3D printing

Finally, after preparing the 3D printer and machine settings, you are ready to start 3D printing. Monitor the printing process and make adjustments as needed to ensure the final product meets expectations.

7, Post-processing operations

  • Support structure removal: After printing is completed without the support of the support material, the support structure needs to be manually removed and peeled off the print.
  • Paint processing: For 3D printing products that need to be painted, they need to be polished first to ensure a smooth surface.
  • Splicing process: If the prints are large, a splicing process may be required to splice multiple prints together.
  • Subsequent processing: According to actual needs, the printed parts are subjected to subsequent processing such as drilling and tapping to meet the specific requirements of customers.
  • Quality inspection: After completing the above operations, the prints need to be inspected to ensure that their quality meets the requirements.


In general, 3D printers use computer-aided design (CAD) software and various printing materials to create three-dimensional objects with complex shapes by layer-by-layer stacking.

This technology is widely used in many fields such as manufacturing, healthcare, architectural design, etc. With the advancement of technology, 3D printers will continue to develop in the future, providing more innovations and possibilities for various industries.

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