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HEIDENHAIN TNC 640 (34059x-01) ISO programming User Manual

Page 327

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HEIDENHAIN TNC 640

327

1

1

.2 The PLANE F

unction: Tilting the W

o

rk

ing Plane (Sof

tw

ar

e Option 1)

Defining the machining plane with Euler angles:
EULER PLANE

Application

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" on page 336
.