- Mill G Code Guide
- Turning G Codes
- Fanuc Alarm Codes
- GCode Simulator
These are the common g-codes for CNC Lathes and turning. Code categories are the groupings for the g-code Wizard (type Ctrl+G for the Wizard). Function tells what the g-code does, Notes gives a little more information such as the parameters, and Tutorial is a link (if any) to a g-code tutorial that uses G-Wizard Editor to teach how to use the g-code.
| | Code | Category | Function | Notes | Tutorials | |
| G00 | Motion | Move in a straight line at rapids speed. | XYZ of endpoint | G00 and MDI. Linear Motion: G00 and G01 | ||
| G01 | Motion | Move in a straight line at last speed commanded by a (F)eedrate | XYZ of endpoint | G01 and MDI. Linear Motion: G00 and G01 | ||
| G02 | Motion | Clockwise circular arc at (F)eedrate | XYZ of endpoint IJK relative to center R for radius | Circular Arcs: G02 and G03 | ||
| G03 | Motion | Counter-clockwise circular arc at (F)eedrate | XYZ of endpoint IJK relative to center R for radius | Circular Arcs: G02 and G03 | ||
| G04 | Motion | Dwell: Stop for a specified time. | P for milliseconds X for seconds | Precise Timing and Speed: Dwell, Exact Stop, Backlash Compensation | ||
| G09 | Motion | Exact stop check | Precise Timing and Speed: Dwell, Exact Stop, Backlash Compensation | |||
| G10 | Compensation | Programmable parameter input | ||||
| G17 | Coordinate | Select X-Y plane | Select X-Y plane | |||
| G18 | Coordinate | Select X-Z plane | Select X-Z plane | |||
| G19 | Coordinate | Select Y-Z plane | Select Y-Z plane | |||
| G20 | Coordinate | Program coordinates are inches | G20 and G21: Unit Conversion | |||
| G21 | Coordinate | Program coordinates are mm | G20 and G21: Unit Conversion | |||
| G27 | Motion | Reference point return check | G28: Return to Reference Point | |||
| G28 | Motion | Return to home position | G28: Return to Reference Point | |||
| G29 | Motion | Return from the reference position | G28: Return to Reference Point | |||
| G30 | Motion | Return to the 2nd, 3rd, and 4th reference point | G28: Return to Reference Point | |||
| G32 | Canned | Constant lead threading (like G01 synchronized with spindle) | ||||
| G40 | Compensation | Tool cutter compensation off (radius comp.) | ||||
| G41 | Compensation | Tool cutter compensation left (radius comp.) | ||||
| G42 | Compensation | Tool cutter compensation right (radius comp.) | ||||
| G43 | Compensation | Apply tool length compensation (plus) | ||||
| G44 | Compensation | Apply tool length compensation (minus) | ||||
| G49 | Compensation | Tool length compensation cancel | ||||
| G50 | Compensation | Reset all scale factors to 1.0 | ||||
| G51 | Compensation | Turn on scale factors | ||||
| G52 | Coordinate | Local workshift for all coordinate systems: add XYZ offsets | ||||
| G53 | Coordinate | Machine coordinate system (cancel work offsets) | ||||
| G54 | Coordinate | Work coordinate system (1st Workpiece) | ||||
| G55 | Coordinate | Work coordinate system (2nd Workpiece) | ||||
| G56 | Coordinate | Work coordinate system (3rd Workpiece) | ||||
| G57 | Coordinate | Work coordinate system (4th Workpiece) | ||||
| G58 | Coordinate | Work coordinate system (5th Workpiece) | ||||
| G59 | Coordinate | Work coordinate system (6th Workpiece) | ||||
| G61 | Other | Exact stop check mode | Precise Timing and Speed: Dwell, Exact Stop, Backlash Compensation | |||
| G62 | Other | Automatic corner override | ||||
| G63 | Other | Tapping mode | ||||
| G64 | Other | Best speed path | ||||
| G65 | Other | Custom macro simple call | Subprograms and Macros | |||
| G70 | Canned | Finish Turning Cycle | ||||
| G71 | Canned | Rough Turning Cycle | G71: Rough Turning Cycle G71 Type II: Rough Turning With “Pockets” | |||
| G72 | Canned | Rough Facing Cycle | ||||
| G73 | Canned | Pattern Repeating Cycle | ||||
| G74 | Canned | Peck Drilling Cycle | ||||
| G75 | Canned | Grooving Cycle | ||||
| G76 | Canned | Threading Cycle | G76 Lathe Threading Cycle | |||
| G80 | Canned | Cancel canned cycle | ||||
| G83 | Canned | Face drilling cycle | ||||
| G84 | Canned | Face Tapping cycle | ||||
| G86 | Canned | Boring canned cycle, spindle stop, rapid out | ||||
| G87 | Canned | Side Drilling Cycle | ||||
| G88 | Canned | Side Tapping Cycle | ||||
| G89 | Canned | Side Boring Cycle | ||||
| G90 | Coordinate | Absolute programming of XYZ (type B and C systems) | G90 and G91 Absolute vs Incremental Mode | |||
| G90.1 | Coordinate | Absolute programming IJK (type B and C systems) | ||||
| G91 | Coordinate | Incremental programming of XYZ (type B and C systems) | G90 and G91 Absolute vs Incremental Mode | |||
| G91.1 | Coordinate | Incremental programming IJK (type B and C systems) | ||||
| G92 | Coordinate | Thread Cutting Cycle | ||||
| G92 (alternate) | Motion | Clamp of maximum spindle speed | S | |||
| G94 | Motion | Endface Turning Cycle | ||||
| G96 | Motion | Constant Surface Speed ON | G96: Constant Surface Speed | |||
| G97 | Motion | Constant Surface Speed Cancel | G96: Constant Surface Speed | |||
| G98 | Motion | Feedrate per Minute | G98 G-Code and G99 G-Code: Canned Cycle Return or Feedrate Modes | |||
| G99 | Motion | Feedrate per Revolution | G98 G-Code and G99 G-Code: Canned Cycle Return or Feedrate Modes | |||
| G190 | Motion | Radius mode | CNC Lathe Programming | |||
| G191 | Motion | Diameter mode | CNC Lathe Programming | |||
