FANUC Certification Practice Test 2026 – Complete Exam Prep

G-code, also known as G programming language, is a fundamental component in CNC (Computer Numerical Control) machining. It is specifically designed to control the movements and operations of machine tools. G-code consists of various commands that instruct the CNC machine on how to perform specific tasks, such as positioning, speed, and feed rate, as well as controlling auxiliary functions like coolant or spindle on/off.

When a CNC program is executed, the G-code commands direct the machine's movements along the axes, define cutting paths, and dictate how the tool interacts with the workpiece. This capability allows for high precision and repeatability in machining operations, making it essential for the manufacturing processes that rely on automated machining equipment.

Understanding this function of G-code is crucial for effectively programming and operating CNC machines, ultimately impacting the quality and efficiency of machining tasks.