What is the difference between 3D printing and CNC machines?
The same:
These two technologies make samples from 3D designs, therefore users can check their sample quickly and accurately before deciding to make a mold and invest in mass production.
The difference:
The following table compares the main manufacturing properties to be considered when making a part by CNC machining or 3D printing.
https://www.3dhubs.com/knowledge-base/3d-printing-vs-cnc-machining#comparison_of_properties