With the Additive offset (M-CS) function, you can shift the zero position of a machine axis in the machine coordinate system M-CS. You can use this function, for example, on large machines, to compensate an axis when using axis angles.
Application
Description of function
The control adds the value to the active axis-specific offset from the preset table.
If you activate a value in the Additive offset (M-CS) function, the zero position of the affected axis changes in the position display of the Positions workspace. The control assumes a different zero position of the axes.
Application example
The travel range of a machine with AC fork head is increased using the Additive offset (M-CS) function. An eccentric tool chuck is used and the zero position of the C axis is shifted by 180°.
- Initial situation:
- Machine kinematics with AC fork head
- Use of an eccentric tool chuck
- The machine parameter presetToAlignAxis (no. 300203) for the C axis is set to FALSE
The tool is clamped in an eccentric tool chuck outside the center of rotation of the C axis.
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Notes
Notice
Danger of collision!
The setting of the machine parameter presetToAlignAxis (no. 300203) determines whether a preset is taken into account in a rotary axis offset. There is a risk of collision during the subsequent machining operation!
- Test the behavior at the machine
- If necessary, set a new preset after the offsets have been activated (mandatory for rotary axes on a table)
- With the machine parameter presetToAlignAxis (no. 300203), the machine manufacturer defines for each axis what effect an offset of a rotary axis has on the preset:
- True (default): Use offset for aligning the workpiece
- False: Use offset for inclined-tool machining