General Programming - Siemens SINUMERIK 840D sl Operating Manual

The slot contour is programmed for machining purposes.
Slot side compensation on
This function is only permissible during path milling with switched-on radius compensation.
When slot side compensation is on, 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 guided in the slot; whereby the bolt must move along every side. The slot
width is determined by parameter D.
Note
Selecting slot side compensation
The slot side compensation selection depends on the transformation type.
8.7.6.1

General programming

The basic programming procedure is as follows:
1. Select work offset for cylinder surface transformation (e.g. offset the zero point on the
2. Position the Y axis (Y axis must be positioned prior to cylinder surface transformation
3. Activate cylinder surface transformation
4. Select work offset for machining on the developed cylinder surface (e.g. shift zero point to
Milling
Operating Manual, 03/2013, 6FC5398-7CP40-3BA1
Longitudinal slot with
parallel limit, slot side
compensation on
center point of the cylinder end face)
because it is defined differently after transformation)
the zero point on the workpiece drawing)
Programming technological functions (cycles)
8.7 Additional cycles and functions in ShopMill
499