Fundamentals; Machining Planes - Siemens SINUMERIK 840D sl Operating Manual

Linked blocks
For the "Contour milling", "Milling", and "Drilling" functions, program the technology blocks and
contours or positioning blocks separately. These program blocks are automatically linked by
the control and connected by brackets in the work plan.
In the technology blocks, you specify how and in what form the machining should take place,
e.g. centering first, and then drilling. In the positioning blocks, you define the positions for
drilling or milling operations.
End of program
End of program signals to the machine that the machining of the workpiece has ended. Further,
here you set whether program execute should be repeated.
Note
Number of workpieces
You can enter the number of required workpieces using the "Times, counters" window.
9.3

Fundamentals

9.3.1

Machining planes

A plane is defined by means of two coordinate axes. The third coordinate axis (tool axis) is
perpendicular to this plane and determines the infeed direction of the tool (e.g. for 2½-D
machining).
When programming, it is necessary to specify the working plane so that the control system
can calculate the tool offset values correctly. The plane is also relevant to certain types of
circular programming and polar coordinates.
Milling
Operating Manual, 05/2017, A5E40868956
Creating a ShopMill program
9.3 Fundamentals
277