Automatic Tool Length Offset Measurement (G37) is used to command a probe to set tool length offsets. A G37 will feed the Z-axis in an effort to probe a tool with a table mounted probe. The Z-axis will move until a signal from the probe is received, or the travel limit is reached. A non-zero H code and either G43 or G44 must be active. When the signal from the probe is received (skip signal) the Z position is used to set the specified tool offset (Hnnn). The resulting tool offset is the offset between the work zero point and the point where the probe is touched.
The coordinate system (G54-G59, G110-G129) and the tool length offsets (H01-H200) may be selected in this block or the previous block.
Notes: