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Real-Time 3D Graphics Simulation for Computer Numerical Control
| G21 METRIC OR SI UNITS | |
|
|
N_ G21 |
| The G21 command defaults the system to metric units. When a program is being run and the G21 command is encountered, all coordinates are stated in as millimeter units. | |
| Example G21 | |
| % | (PROGRAM START FLAG) |
| :1010 | |
| N5 G90 G21 G17 | (ABSOLUTE PROGRAMMING IN METRIC) |
| N10 M06 T2 | |
| N15 M03 S1200 | |
| N20 G00 X-5 Y5 | |
| N25 Z-8 | |
| N30 G01 X90 F300 | |
| N35 X95 Y20 | |
| N40 Y50 | |
| N45 G03 X75 Y65 R15 | |
| N50 G01 X40 Y50 | |
| N55 G02 X0 Y10 R40 | |
| N60 G00 Z25.4 | |
| N65 Y0 | |
| N70 M05 | |
| N75 M30 |