3D printing (a kind of rapid prototyping technology) is a new technology that has become popular in recent years, and CNC machining is a technology that has been used for many years. So what is the difference between 3D printing and CNC machining? Which is better? First of all, let's take a look at those characteristics of 3D printing and CNC machining:

1) The advantages of CNC are high efficiency (referring to high efficiency), accuracy and economy, and the advantages of 3D printing (a kind of rapid prototyping technology) are ultra-high degrees of freedom.

2) 3D printing (a kind of rapid prototyping technology) technology, such as selective laser melting (SLM), requires support structure during the implementation process,otherwise there is no way to manufacture it, and this is its further development in the manufacturing industrya major bottleneck.

3) The traditional CNC machining industry has been developing for a long time, and now there is a set of mature standards, whether it is spindle or tool interface, still a control system, but 3D printing (a kind of rapid prototyping technology) currently lacks such standards, and the establishment of standards often takes a long time.

In summary:

1.3D printing (a kind of rapid prototyping technology) has a higher degree of freedom, and can print all kinds of weird and fanciful prototypes or product models. However, the degree of freedom of CNC processing has certain limitations, a simple sentence In other words, the range of prototype models processed by 3D printing.

It is larger than CNC machining, and CNC is limited by tool interface (interface), etc., and its scope is smaller than 3D printing.

2. Another thing I didn’t mention is that, in fact, 3D printing (a kind of rapid prototyping technology) is inferior to CNC processing in terms of printing overall parts, especially super-large parts. 3D printing is generally used. It is more difficult to achieve, but CNC machining does not have this problem. CNC machining is an automated machine tool equipped with a program control system. The control system can logically process the program with control codes or other symbolic instructions, and decode it, so as to make the machine tool move and process parts. Also called CNC or numerical control machine tool.

3. CNC processing prototype model samples are more advantageous in price than 3D printing.

4. The result of the difference between the two is that 3D printing allows you to smoothly process and display your unconstrained works or products, while CNC is more advantageous in terms of economy and large-scale prototype production. You can make a comprehensive comparison.