G-code in 3D printing

Wikipedia says that G-code (also RS-274), which has many variants, is the common name for the most widely used numerical control (NC) programming language. It is used mainly in computer-aided manufacturing to control automated machine tools.

G-code is a language in which people tell computerized machine tools how to make something. The "how" is defined by g-code instructions provided to a machine controller (industrial computer) that tells the motors where to move, how fast to move, and what path to follow. The two most common situations are that, within a machine tool such as a lathe or mill, a cutting tool is moved according to these instructions through a toolpath cutting away material to leave only the finished workpiece and/or, an unfinished workpiece is precisely positioned in any of up to 9 axis around the 3 dimensions relative to a toolpath and, either or both can move relative to each other.

• G code in CNC machine.
• Working of G-Code
• Changing a pallet
• Rapid movement
• A series of controlled feed moves, resulting in a workpiece cut, a bored hole, or a decorative profile shape
• Controlling  feed movement, in an arc or a straight line
• Setting tool information
• What Is The Purpose Of CAM Software?