G187 is one of the most critical yet misunderstood Haas CNC commands. It controls how the machine blends motion between linear and circular passes, directly influencing accuracy, toolpath smoothness, surface finish, and high-speed dynamic behavior. G187 affects how the machine ...
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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.
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G28.1 / G28.2 Zero Return Diagnostics: Advanced 2025 Guide for CNC Axis Homing, Encoder Recovery, and Overtravel Reset Procedures
cnccodeG28.1 and G28.2 are advanced CNC diagnostic commands used for axis homing, encoder restoration, and recovery after overtravel or power-loss errors. These commands are essential when a machine cannot home normally, when absolute encoders lose reference, or when the machine ...
G187 Tolerance Control: Complete 2025 Haas CNC Guide to Accuracy Modes, Surface Finish, and High-Speed Machining Optimization
cnccodeG187 is the Haas CNC command that controls the machine’s motion smoothing, accuracy level, and corner-rounding behavior during high-speed machining. It functions as a tolerance filter that adjusts how aggressively the control blends linear and circular toolpath segments. By modifying ...
G187 Tolerance Control: Complete 2025 Haas CNC Guide for Surface Quality, Corner Accuracy, and High-Speed Machining Optimization
cnccodeG187 is a Haas-specific command that controls the machine’s accuracy, smoothing behavior, and cornering tolerance. It directly influences how the CNC interprets small linear moves, arcs, and high-speed toolpaths generated by CAM systems. With G187, you can switch between roughing ...
G28.1 / G28.2 Zero Return Diagnostics: Complete 2025 CNC Guide for Axis Homing, Encoder Calibration, and Safe Recovery
cnccodeG28.1 and G28.2 are advanced CNC diagnostic commands used for axis zero-return calibration, encoder synchronization, and safe recovery from axis faults. These commands allow the machine to re-establish its home reference using encoder feedback, grid-shift positions, and servo alignment logic. ...
G187 Haas Tolerance Control: Complete 2025 Guide to Machining Accuracy, Surface Finish Optimization, and Corner Rounding Management
cnccodeG187 is the Haas-specific G-code used to control machining accuracy, corner smoothing, and tolerance settings for both roughing and finishing operations. It directly affects how the Haas CNC planner interprets small movements, sharp corners, high-speed toolpaths, and complex geometry coming ...
G68 / G69 Coordinate Rotation Master Guide: Complete 2025 CNC Programming Manual for Rotated Workplanes and Angular Machining
cnccodeG68 is the CNC command used to rotate the active coordinate system around a defined pivot point, allowing the programmer to machine angled features using standard X/Y/Z moves without trigonometry. Instead of calculating rotated positions manually, G68 mathematically rotates all ...
G10 Programmable Offset Setting Part 2: Advanced 2025 Guide for Automated Work Offsets, Tool Offsets, and Multi-Fixture CNC Machining
cnccodeG10 is one of the most powerful and versatile CNC commands, allowing programmers to write work offsets, tool geometry, tool wear, and parameter data directly from within a running program. Part 2 focuses on advanced applications, including multi-fixture automation, dynamic ...
G289 Advanced Probe Macro Cycle: Complete 2025 Guide to Automated Work Offset Setting, Precision Measurement, and CNC In-Process Control
cnccodeG289 is an advanced probing macro cycle used on modern Fanuc-based CNC machines equipped with Renishaw or similar spindle probes. Unlike standard probing cycles (such as G38 or simple G31 skip moves), G289 executes a fully parameterized measurement routine that ...
G87 Back Boring Cycle: Complete 2025 CNC Guide for Reverse Boring, Back-Side Counterbores, and Hidden Surface Machining
cnccodeG87 is a specialized CNC milling cycle used for back boring operations—machining that takes place on the back side of a hole, where the tool must pass completely through the part and then expand to cut a feature that is ...