HEIDENHAIN TNC 370 User Manual page 41

1 introduction
1.2 Fundamentals of NC
Example:
Drawings with several relative datums
(according to IS0 129 or DIN 406, Part 11; Figure 171)
Example:
Coordinates of point @I :
X=lOmm
Y= 5mm
Z= Omm
The datum of the Cartesian coordinate system is located in negative
direction 10 mm away from point @ on the X axis and 5 mm on the Y
axis.
The 3D Touch Probe System from HEIDENHAIN is an especially
convenient and efficient way to find and set datums.
i
4
d
Fig. 1.16: Point W detlnes the coordinate
system.
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TNC 370