3. Resetting in Y direction
The last step is to take the tool to resetting position
for the Y axis. With the spindle switched on, the tool
is taken into Y direction (see figure 54), to the side
surface of the work part (X, E Plane) until a small
marking is done on the work part surface (touching
the work part).
When touching the work part in X axis the radius of
the applied tool has to be considered when confirming
the value with the IST key, since the center point
coordinates of the tool are always used in NC programming.
If the tool of the adjacent figure has, for instance, a
radius of 15 mm then the value Y=-15 is entered into
the CNC control and confirmed with IST.