What is the difference between CNC machine and 3D printing(2)?

2. Differences in parts due to the forming principle


As we mentioned earlier, 3D printing is a kind of additive manufacturing. Its principle is to cut the model into N layers/N multi-points, and then stack them layer by layer/point by point in order, just like building blocks. same.


Therefore, 3D printing can effectively process and produce parts with complex structures, such as hollow parts, while CNC is difficult to realize hollow parts processing.


3. Differences in operating software

Most of the slicing software for 3D printing is easy to operate. Even a layman can be proficient in operating the slicing software within one or two days of professional guidance. Because the slicing software is currently optimized to be very simple, the support can be automatically generated, which is why 3D printing can be popularized by individual users.


CNC machine programming software is much more complicated and requires professionals to operate it. People with zero basic knowledge generally need to learn about half a year. In addition, a CNC operator is required to operate the machine. The more commonly used ones are UG, MASTERCAM, CIMATRON, and domestically produced fine carvings. The learning of these software is still difficult.

 CNC machine

4. Differences in post-processing

There are not many options for post-processing 3D printed parts, generally polishing, spraying, deburring, dyeing and so on.


The post-processing options of CNC machine parts are varied, in addition to polishing, oil injection, deburring, as well as electroplating, silk screen printing, pad printing, metal oxidation, laser engraving, sandblasting and so on.


There is a sequence of hearings, and a specialization in the surgery industry. CNC machine and 3D print have their own advantages and disadvantages. Choosing the right processing technology has a vital influence on your prototype project.