9 tilting the working plane (software option 1), Application, function – HEIDENHAIN TNC 620 (340 56x-02) ISO programming User Manual
Page 346

346
Manual Operation and Setup
12.9 Tilting the W
o
rk
ing Plane (Sof
tw
ar
e Option 1)
12.9 Tilting the Working Plane
(Software Option 1)
Application, function
The TNC supports the tilting functions on machine tools with swivel 
heads and/or tilting tables. Typical applications are, for example, 
oblique holes or contours in an oblique plane. The working plane is 
always tilted around the active datum. The program is written as usual 
in a main plane, such as the X/Y plane, but is executed in a plane that 
is tilted relative to the main plane.
There are three functions available for tilting the working plane:
3-D ROT soft key in the Manual Operation mode and Electronic 
Handwheel mode, see "Activating manual tilting", page 349.
Tilting under program control, Cycle G80 in the part program (see 
User’s Manual, Cycles, Cycle 19 WORKING PLANE)
Tilting under program control, PLANE function in the part program 
(see “The PLANE Function: Tilting the Working Plane (Software 
Option 1)” on page 285).
The TNC functions for "tilting the working plane" are coordinate 
transformations. The working plane is always perpendicular to the 
direction of the tool axis.
X
Z
Y
B
10°
The functions for tilting the working plane are interfaced to 
the TNC and the machine tool by the machine tool builder. 
With some swivel heads and tilting tables, the machine 
tool builder determines whether the entered angles are 
interpreted as coordinates of the rotary axes or as angular 
components of a tilted plane. Refer to your machine tool 
manual.
