beautypg.com

HEIDENHAIN TNC 620 (81760x-02) User Manual

Page 417

background image

The PLANE function: Tilting the working plane (software option 8) 12.2

12

TNC 620 | User's Manual

HEIDENHAIN Conversational Programming | 2/2015

417

Defining the working plane with the spatial angle:
PLANE SPATIAL

Application

Spatial angles define a working plane using up to three rotations

of the coordinate system; two perspectives that have always the

same result are available for this purpose.

Rotations about the machine-based coordinate system:

The

sequence of the rotations is first around the machine axis C,

then around the machine axis B, and then around the machine

axis A.

Rotations about the respectively tilted coordinate system:

The sequence of rotations is first around the machine axis C,

then around the rotated axis B, and then around the rotated axis

A. This perspective is usually easier to understand, because

one rotary axis is fixed so that the rotations of the coordinate

system are easier to comprehend.

Before programming, note the following

You must always define the three spatial angles

SPA,

SPB, and SPC, even if one of them = 0.
This operation corresponds to

19 if the entries

in Cycle

19 are defined as spatial angles on the

machine side.
PLANE SPATIAL is not permitted if Cycle 8 MIRROR

IMAGE is active.
Parameter description for the positioning behavior:

see "Specifying the positioning behavior of the

PLANE function", page 429.