CNC (Computer Numerical Control) Machining is a subtractive manufacturing process that involves using high speed, precision cutting tools to remove material from a blank block. The block is usually made of plastic or metal. The CNC machine carves away material from the block to create the part.
A CNC machine is given a specific set of directions and uses those instructions to cut the part out of a blank. The CNC machine instructions are given in computer code. The code will tell the machine where to place the tooltip, how fast the tooltip should spin, and the coordinates to where the tooltip will move. CNC machines use coordinates on a set axis such as x-, y-, and z-axis. Commonly used CNC machines include vertical milling machines, horizontal milling machines, lathes, routers, and grinders. Parts can be cut out with high precision and easily replicated over and over again. YEJIA by Fathom offers a wide array of plastic machining services by offering not only CNC machines for plastic and metal but plastic injection molding services as well.