Coordinate Systems - Siemens SINUMERIK 808D Milling Programming And Operating Manual

3. Detach the insertion strips from the blank plastic sheet.
4. Pull out the pre-inserted strips from the MCP.
5. Insert the customized strips on the back of the MCP.
1.3

Coordinate systems

As a rule, a coordinate system is formed from three mutually perpendicular coordinate axes.
The positive directions of the coordinate axes are defined using the so-called "3-finger rule"
of the right hand. The coordinate system is related to the workpiece and programming takes
place independently of whether the tool or the workpiece is being traversed. When
programming, it is always assumed that the tool traverses relative to the coordinate system
of the workpiece, which is intended to be stationary.
The figure below illustrates how to determine the axis directions.
Machine coordinate system (MCS)
The orientation of the coordinate system relative to the machine depends on the respective
machine types. It can be rotated in different positions.
The directions of the axes follow the "3-finger rule" of the right hand. Seen from the front of
the machine, the middle finger of the right hand points in the opposite direction to the infeed
of the spindle.
Milling Part 1: Operation
Programming and Operating Manual, 12/2012, 6FC5398-4DP10-0BA0
Note
This manual assumes an 808D standard machine control panel (MCP). Should you use a
different MCP, the operation may be other than described herein.
Introduction
1.3 Coordinate systems
90°
90°
90°
13