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Offsets

Spindle Length Offset

The spindle length offset is the distance from the top of the Z axis travel (Z=0) to the point where the bottom of the spindle touches the tool setter.

Typically, you only need to measure the spindle length offset once after setting up the spindle on the machine as its position should not change relative to the Z-axis.

In cases where the spindle is moved relative to the Z axis, performing a new measurement of the spindle length offset will automatically compensate any stored work coordinate offsets. This eliminates the need to re-enter or re-calculate work coordinate offsets if the spindle position changes.

The spindle length offset is the reference for all tool length offset measurements.

Tool Length Offset

The tool length offset is defined as the distance from the bottom of the spindle to the bottom of the tool.

The controller automatically adjusts the Z axis position to compensate for the tool length offset with respect to the work coordinate offsets.