HEIDENHAIN POSITIP 8000 Operating Instructions Manual page 324

20
Reference system on milling machines
When machining a workpiece on a milling machine, the right-hand rule helps you
to remember the three axis directions: the middle finger points in the positive
direction of the tool axis from the workpiece toward the tool (the Z axis), the
thumb points in the positive X direction, and the index finger in the positive Y
direction.
Figure 84: Assignment of the rectangular coordinate system to the machine axes
Designation of the axes on milling machines
The axes U, V and W are secondary linear axes parallel to the principal axes X, Y
and Z, respectively. The rotary axes are designated as A, B and C.
Principal axis
X
Y
Z
Figure 85: Assignment of the rotary axes and secondary axes to the principal axes
324
Rotary axis
A
B
C
HEIDENHAIN | POSITIP 8000 | Operating Instructions | 09/2018
Secondary axis
U
V
W
Settings | Axes