3.2.12 Zero approach machining
If this function is used in the drilling process, the given pitch of the hole is entered in the
counter and the target value from the current position to the hole is automatically displayed.
The machine table is fed until the displayed value becomes zero, and the hole is drilled. By
repeating this procedure, holes can be drilled efficiently.
NOTE
Errors involved in positioning the machine table are automatically corrected for the
target value of the next hole.
An example of drilling
• Drilling the above holes using zero approach
Step 1 Press the Zero-approach key.
Step 2 Feed the machine table to the datum point, and set the counter display to zero.
Step 3 Enter the distance (10mm) for the first drilling point.
Step 4 Feed the machine table to the machining position, where the counter displays
-0.010mm, and drill a hole.
No. 99MBE032A
3-24
