G74 is a powerful CNC turning cycle used for pecking operations on Fanuc and Fanuc-compatible lathes. It is designed to break chips, reduce cutting pressure, and clear material during deep-hole drilling or OD/ID peck turning. Unlike standard G01 linear turning, ...
Home/G-Code & M-Code Reference/Page 9
Category: G-Code & M-Code Reference
Explore the complete list of G-codes and M-codes used in CNC machining. Understand commands, syntax, and machine responses with real-world examples and explanations.
cnccode.com – Ultimate CNC Knowledge Hub | G-Code, CAD/CAM, DIY CNC Latest Articles
G72 Facing Cycle: Complete 2025 CNC Turning Guide for Automatic Facing, Shoulder Cutting, and Stock Cleanup
cnccodeG72 is a dedicated CNC turning cycle used for automatic facing operations on Fanuc and Fanuc-compatible lathes. It allows the machine to rough and finish a face by stepping in at controlled depths, cutting from the outer diameter toward the ...
G71 Rough Turning Cycle: Complete 2025 Professional Guide to CNC Lathe Roughing for External and Internal Profiles
cnccodeG71 is the most widely used rough turning cycle on Fanuc-controlled CNC lathes. It automates the entire rough-cutting process by repeatedly cutting along a defined profile until the part reaches a predetermined near-net shape. G71 handles stock removal, depth control, ...
G76 Multi-Pass Threading Cycle: Advanced 2025 CNC Turning Guide for Precision Internal and External Threads
cnccodeG76 is one of the most advanced and widely used CNC turning cycles for cutting precision threads on Fanuc and Fanuc-compatible controls. Unlike simple threading cycles, G76 performs multi-pass threading with intelligent depth reduction, finishing control, chamfering, pullout, and automatic ...
G131 Fanuc High-Speed Mode: Complete 2025 Guide to Advanced HSM Performance, Accuracy, and Real Machining Examples
cnccodeG131 is a powerful Fanuc high-speed machining command used on many modern machines, especially those with advanced servo systems and high-speed cutting options. It modifies the controller’s internal motion algorithms, acceleration curves, interpolation logic, and smoothing strategy to deliver dramatically ...
G12 G13 Circular Pocket Milling Cycle: Advanced 2025 Guide for High-Precision CNC Pocket Machining
cnccodeG12 and G13 are powerful circular pocket milling cycles commonly used on Haas CNC machines to create perfectly round pockets quickly and efficiently without needing a full CAM-generated toolpath. G12 performs a clockwise pocketing motion, while G13 performs the same ...
G93 G94 G95 Feedrate Modes Explained: Professional CNC Feed Control Guide for 2025 Machining Accuracy
cnccodeG93, G94, and G95 are the three fundamental CNC feedrate modes that determine how the machine interprets F commands. Understanding these modes is essential for accurate machining, especially in high-speed 3D surfacing, turning operations, multi-axis toolpaths, and synchronized spindle motion. ...
G68 Coordinate Rotation: Advanced 2D Angular Machining Guide for Precision CNC Programming in 2025
cnccodeG68 is an extremely powerful but often overlooked CNC command that rotates the active coordinate system around a defined origin point. Instead of manually calculating angled positions or redrawing geometry in CAM, the programmer can simply rotate the work plane ...
G41 G42 Cutter Compensation Expert Guide: Full 2025 Programming Reference for Precision CNC Machining
cnccodeG41 and G42 are essential G-codes used to apply cutter radius compensation during profile milling. They allow the CNC machine to shift the toolpath left or right automatically so that the programmed geometry represents the part profile—not the center of ...
M198 Remote Program Call: Advanced Guide to Running CNC Subprograms from USB and External Memory in 2025
cnccodeM198 is one of the most powerful and flexible CNC commands for automated manufacturing because it allows a machine to execute a subprogram stored externally—usually on a USB drive or memory card—without loading it into internal storage. This enables true ...