Computer numerical control (CNC) routing is programmed with a language commonly referred to as G-Code and it opens up a world of opportunities. CNC routing is similar to hand routing only it's incredibly accurate and much faster. When you add CNC to the equation, you get precision coupled with the ability to make many accurate parts quickly.

CNC routing machines work by translating programmed instruction coordinates into precision motion along the path specified. The CNC router uses a tool to machine that path to produce the desired profile. This allows a programmer to write a part program and route many identical parts today, and then run that same program weeks or months from now and get identical parts that will fit just as well as those made today.