Hong Kong Polytechnic University is exhibited 3D printing at CIExpo 2022 – Construction Innovation Expo.
![](https://www.tenji.tv/wp-content/uploads/video_img/ciexp_2022_12/ciexp_2022_12_04-1.jpg)
Hello everyone, today I will introduce the 3D printing technology.
3D printing technology is also called additive manufacturing which can manufacture the products layer by layer with a high efficiency and high accuracy.
3D printing technology is also called additive manufacturing which can manufacture the products layer by layer with a high efficiency and high accuracy.
![](https://www.tenji.tv/wp-content/uploads/video_img/ciexp_2022_12/ciexp_2022_12_04-15.jpg)
And this is a very typical 3D printing machine.
![](https://www.tenji.tv/wp-content/uploads/video_img/ciexp_2022_12/ciexp_2022_12_04-22.jpg)
And we can either use the polymer if you use the polymer as the raw materials something like the PLA or ABS,
![](https://www.tenji.tv/wp-content/uploads/video_img/ciexp_2022_12/ciexp_2022_12_04-29.jpg)
we use the polymer in this machine, and we just generate the 3D models in the software.
![](https://www.tenji.tv/wp-content/uploads/video_img/ciexp_2022_12/ciexp_2022_12_04-36.jpg)
And we slice the models into multiple layers.
![](https://www.tenji.tv/wp-content/uploads/video_img/ciexp_2022_12/ciexp_2022_12_04-43.jpg)
It depends on our requirements and then we generate the printing path of each layer and convert the printing path into machine codes.
![](https://www.tenji.tv/wp-content/uploads/video_img/ciexp_2022_12/ciexp_2022_12_04-50.jpg)
And finally we input the code into this machine so the machine can move along based on the printing path.
![](https://www.tenji.tv/wp-content/uploads/video_img/ciexp_2022_12/ciexp_2022_12_04-64.jpg)
And the polymer materials can be extruded from the printing nozzle.
![](https://www.tenji.tv/wp-content/uploads/video_img/ciexp_2022_12/ciexp_2022_12_04-71.jpg)
So the products can be completed by a layer by layer and it is very efficient.
![](https://www.tenji.tv/wp-content/uploads/video_img/ciexp_2022_12/ciexp_2022_12_04-78.jpg)
So this is the basic concept of 3D printing technology.
Thank you so much for your watching.
Thank you so much for your watching.