Position Of Zero Points - Siemens SINUMERIK 840DE Programming Manual

Fundamental Geometrical Principles

1.2 Position of zero points

1.2 Position of zero points
The various origins (zero points) and reference positions are defined on the NC machine.
They are reference points
• for the machine to approach and
• for programming the workpiece dimensions.
The diagrams show the zero points and reference points for drilling/milling machines and
turning machines.
Milling:
Turning:
Reference points
They are:
M
A
W
1-10
Machine zero
Blocking point. Can coincide with the workpiece zero point (only turning
machines).
Workpiece zero = Program zero
Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
Fundamentals