Siemens SINUMERIK 840D Operation/Programming Manual page 306

3
Programming with ShopMill
3.10 Miscellaneous functions
Slot side compensation
ON
Programming
Select with softkey
3-306
When slot side compensation is
active, slots with parallel sides are
machined even if the slot width is
larger than the tool diameter.
The slot contour must not be programmed for machining purposes,
but the imaginary center-point path of a bolt inserted in the slot; the
bolt must be in contact with all sides of the slot. The slot width is
determined by parameter D. (see also Sec. "Example 5: Slot side
compensation".)
The basic programming procedure is as follows:
1. Select work offset for cylinder surface transformation (e.g. offset
the zero point on the center point of the cylinder end face)
2. Position the Y axis (Y axis must be positioned prior to cylinder
surface transformation because it is defined differently after
transformation)
3. Activate cylinder surface transformation
4. Select work offset for machining on developed cylinder surface
(e.g. shift zero point to the zero point on the workpiece drawing)
5. Program machining operation (e.g. enter contour and path milling)
6. Deactivate cylinder surface transformation
The programmed cylinder surface transformation is simulated only as
a developed peripheral surface.
The work offsets active prior to selection of cylinder surface
transformation are no longer active after the function has been
deselected.
Transfor-
mations >
SINUMERIK 840D/840Di/810D Operation/Programming ShopMill (BAS) – 10.04 Edition
Longitudinal slot
limited in parallel, slot
side compensation on
Cylinder
surface >
 Siemens AG, 2004. All rights reserved
3
10.04