What is 3D printing technology?
3D printing is an additive manufacturing technique that creates three-dimensional objects by adding materials layer by layer. Unlike traditional subtractive manufacturing (such as cutting or milling), 3D printing starts with a digital model and prints layer by layer until the entire object is completed. 3D printing can use a variety of materials, including plastic, metal, resin, etc., and is widely used in manufacturing, medical, construction, fashion and other fields.
How 3D printing works?
01
Digital modeling
First, a 3D model is created using computer aided design (CAD) software.
Figure 1: Chenhao Zhou, 2021 "Digital Design lizard in Progress" (Collection of artist, Chenhao Zhou)
02
Slice processing
The 3D model is cut into a series of cross sections (slices) to guide the printer to print layer by layer.
Figure 2: Chenhao Zhou, 2021 "Digital Design lizard in Progress" (Collection of artist, Chenhao Zhou)
03
Printing
The 3D printer builds up the material layer by layer according to the slicing instructions until the entire object is completed.
Figure 3: 3D Model Printing” (from WiX image)
04
Post-processing
After printing is complete, some post-processing may be required, such as removal of support structures, sanding, or painting.
Articulated lizard armadillo 001 for 3D printing
Image from: https://www.myminifactory.com/object/3d-print-articulated-lizard-armadillo-001-for-3d-printing-stl-303106