Siemens SINUMERIK 840D Operation/Programming Manual page 79

2
10.04
Cycle Start
Set WO
-or-
Measuring four holes
automatically
Jog
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Operation/Programming ShopMill (BAS) – 10.04 Edition
11. Then move the tool approximately to the center of the second and
third hole and press the "Cycle Start" key.
The tool automatically contacts 4 points in succession around the
inside walls of the holes. When measurement of P2 and P3 has been
successfully completed, the "P2 stored" and "P3 stored" softkeys
become active.
12. Press the "Set WO" or "Calculate" softkey.
Calculate
The center point and the diameter of the circle on which the three hole
center points lie are calculated and displayed. If you selected entry
"Yes" for "Angle offs.", angle α is additionally calculated and
displayed.
With "Set WO", the center point of the first hole now corresponds to
the position setpoint. The calculated rotation is stored in the work
offset.
1. Attach a 3D probe type tool to the spindle.
2. Move the tool until it is approximately at the center of first the hole.
3. In "Machine Manual" mode, select the "Meas. workp." softkey.
4. Press the "Pocket/Hole" softkey.
The "Pocket/Hole" window opens with new vertical softkeys.
Press the "4 holes" softkey.
5. Specify whether you want "Measurement only" or in which work
offset you want to store the zero point (as described under
"Measuring an edge manually", step 5).
6. Enter the approximate diameter in "Øhole" (see step 4, "Measuring
two holes manually".
7. Under "Angle offs.", select entry "No".
- OR -
Under "Angle offs." select entry "Yes", if you want alignment to be
performed with coordinate rotation.
8. Enter the setpoint angle.
The angle entered here refers to the 1st axis of the working plane
(X/Y plane). This input field only appears, if you specified "Yes" for
"Angle offs."
2.6 Measuring workpiece zero
2
Operation
2-79