G-code For CNC Machine: Commands & Uses

G-code is a set of instructions that tell a CNC machine how to make a physical part. It is the language that the CNC machine understands, and it is used to control all aspects of the machine’s operation. G-code is essential for controlling the various components of a CNC machine, from axes to spindle speed. In this article, we will explore the basics of G-code and its uses in CNC machines.

What Is G-Code?

G-code, or also known as “Geometric Code”, is the programming language of CNC machines. It is a set of commands and instructions that control the movement of the machine’s components. G-code is essential for controlling the various aspects of CNC machining, such as the spindle speed, feed rate, tool selection, and cutting depth. G-code is based on a set of standardized instructions, which are used to move the machine’s components in precise increments. The instructions in G-code can be simple movements, such as rapid moves, linear moves, or circular moves.

Types of G-Code Commands

The commands that make up G-code can be divided into two main categories: motion commands and non-motion commands. Motion commands control the movement of the machine’s components, while non-motion commands control the machine’s settings. Common motion commands include G0 (rapid motion), G1 (linear motion), and G2/G3 (circular motion). Non-motion commands include G4 (dwell), G17/G18/G19 (plane selection), and G20/G21 (units).

Uses of G-Code

G-code is used to control CNC machines for a wide range of applications. Common uses of G-code include:

• Cutting parts out of sheet metal or other materials
• Drilling holes in parts
• Creating complex three-dimensional shapes
• Engraving text or logos onto parts

G-code is also used in the manufacturing industry for the production of machine parts. The use of G-code allows for the automation of machining processes, which increases the efficiency and accuracy of the parts produced.

Conclusion

G-code is a powerful and versatile language used to control CNC machines. It is a set of commands that control the movement of the machine’s components, as well as the machine’s settings. G-code is used for a variety of applications, including cutting, drilling, creating complex shapes, and engraving text or logos onto parts. G-code is essential for controlling the various aspects of CNC machining, and its use allows for the automation of machining processes.