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Heidenhain TNC (ISO) G-code list
54 G-codes. Pick a code for the format, the addresses, an example program and what to watch out for.
| Code | Meaning | Machine |
|---|---|---|
| G00 | Rapid straight line, Cartesian | Mill |
| G01 | Straight line at feed rate, Cartesian | Mill |
| G02 | Clockwise arc, Cartesian | Mill |
| G03 | Counterclockwise arc, Cartesian | Mill |
| G04 | Dwell time | Mill |
| G05 | Arc without direction, Cartesian | Mill |
| G06 | Tangential arc, Cartesian | Mill |
| G07 | Paraxial positioning block | Mill |
| G10 | Rapid straight line, polar | Mill |
| G11 | Straight line at feed rate, polar | Mill |
| G12 | Clockwise arc, polar | Mill |
| G13 | Counterclockwise arc, polar | Mill |
| G16 | Tangential arc, polar | Mill |
| G17 | Working plane XY, tool axis Z | Mill |
| G24 | Chamfer between two lines | Mill |
| G25 | Corner rounding with radius R | Mill |
| G26 | Tangential approach on an arc | Mill |
| G27 | Tangential departure on an arc | Mill |
| G28 | Mirror image | Mill |
| G29 | Last position becomes the pole | Mill |
| G30 | Blank form min point | Mill |
| G31 | Blank form max point | Mill |
| G38 | Program stop | Mill |
| G40 | Cancel radius compensation | Mill |
| G41 | Radius compensation left | Mill |
| G42 | Radius compensation right | Mill |
| G51 | Tool preselection | Mill |
| G53 | Datum shift from datum table | Mill |
| G54 | Datum shift in the program | Mill |
| G70 | Inch units | Mill |
| G71 | Millimeter units | Mill |
| G72 | Scaling factor | Mill |
| G73 | Rotation of the coordinate system | Mill |
| G79 | Cycle call | Mill |
| G80 | Tilt the working plane | Mill |
| G90 | Absolute dimensions | Mill |
| G91 | Incremental dimensions | Mill |
| G98 | Set label | Mill |
| G99 | Tool definition in the program | Mill |
| G200 | Drilling cycle | Mill |
| G201 | Reaming cycle | Mill |
| G202 | Boring cycle | Mill |
| G203 | Universal drilling | Mill |
| G205 | Universal pecking | Mill |
| G206 | Tapping with floating holder | Mill |
| G207 | Rigid tapping | Mill |
| G209 | Tapping with chip breaking | Mill |
| G220 | Circular point pattern | Mill |
| G221 | Linear point pattern | Mill |
| G240 | Centering cycle | Mill |
| G247 | Datum setting from preset table | Mill |
| G251 | Rectangular pocket complete | Mill |
| G252 | Circular pocket complete | Mill |
| G262 | Thread milling | Mill |
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Open the G-code list Heidenhain TNC M-codes