HEIDENHAIN iTNC 530 (340 49x-03) ISO programming - Manual (Page 472)

472 9 Programming: Special Functions
9.4 Defining the Mac
h
ining Plan
e with Euler Angles: PLANE
E
ULER
9.4 Defining the Machining Plane
with Euler Angles:
PLANE EULER
Function
Euler angles define a machining plane through up to three rotations
about the respectively tilted coordinate system. The Swiss
mathematician Leonhard Euler defined these angles. When applied to
the machine coordinate system, they have the following meanings:
Precession angle
EULPR Rotation of the coordinate system around the Z
axis
Nutation angle
EULNU Rotation of the coordinate system around the X
axis already shifted by the precession angle
Rotation angle
EULROT Rotation of the tilted machining plane around the
tilted Z axis
Before programming, note the following:
The sequence of the rotations described above is
independent of the active tool axis.
Parameter description for the positioning behavior: See
“Specifying the Positioning Behavior of the PLANE
Function,” page 482.