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Real-Time 3D Graphics Simulation for Computer Numerical Control
| G28 AUTOMATIC RETURN TO REFERENCE POINT | |
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N_ G28 X_ Z_ |
| The G28 command is commonly used prior to an automatic tool change. It allows the existing tool to be positioned to the predefined reference point automatically via an intermediate position. This ensures that when the tool turret is engaged, it is properly aligned and clears the workpiece. | |
| Example G28 | |
| % | (PROGRAM START FLAG) |
| :1028 | |
| N5 G20 G40 | |
| N10 T0101 | |
| N15 M03 | |
| N20 M08 | |
| N25 G00 X2.25 | |
| N30 Z0.1 | |
| N35 G01 Z-2 F0.012 | |
| N40 G28 X4 Z0.5 M09 | |
| N45 T0100 M05 | |
| N50 M02 |