Stock Axis

The axis that corresponds to the length of the stock is specified as the Axis.

Z axis:

Select Axis: Z for all turning, turn/mill parts or milling parts where you want the XY plane to correspond to the face of the part.

Y axis:

Select Axis: Y for all 4th axis wrapping parts where the Y axis is the wrapping axis.

X axis:

Select Axis: X for all 4th axis wrapping parts where the X axis is the wrapping axis.

See also Fourth axis wrapping