beautypg.com

Function, Spatial, Three space angles: spa, spb, and spc – HEIDENHAIN iTNC 530 (340 422) User Manual

Page 460

background image

460

9 Programming: Special Functions

9.2 Defining the Mac

h

ining Plane

with Space Angles: PLANE

S

P

A

TIAL

9.2

Defining the Machining Plane
with Space Angles:
PLANE SPATIAL

Function

Spatial angles define a machining plane through up to three rotations
around the fixed machine coordinate system.
The sequence of
rotations is firmly specified: first around the A axis, then B, and then C
(the function corresponds to Cycle 19, if the entries in Cycle 19 are set
to space angles).

Before programming, note the following:

You must always define the three space angles SPA, SPB,
and SPC, even if one of them = 0.

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 472.