Selection Of 3D Trc - Siemens SINUMERIK 840D sl Function Manual

W5: 3D tool radius compensation - 840D sl only
23.4 Selection/deselection of 3D TRC
23.4.1

Selection of 3D TRC

CUT3DC
3D radius compensation for circumferential milling (only when 5-axis transformation is
active).
CUT3DFS
3D tool offset for face milling with constant orientation. The tool orientation is determined by
G17 - G19 and is not influenced by frames.
CUT3DFF
3D tool offset for face milling with constant orientation. The tool orientation is the direction
defined by G17 - G19 and, in some case, rotated by a frame.
CUT3DF
This programming command selects the 3D tool offset for face milling with change in orientation
(only when 5-axis transformation is active).
TRC selection
The program commands used to select 3D TRC are the same as those for 2D TRC. G41/
G42 specify the compensation on the left or right in the direction of motion (the response on
selection of G41 and G42 for 3D face milling is identical). Tool radius compensation is
deactivated with G40. The approach response is always controlled with NORM. Activation must
be in a linear block.
Example:
Program code
N10 A0 B0 X0 Y0 Z0 F5000
N20 T1 D1
N30 TRAORI(1)
N40 CUT3DC
N50 G42 X10 Y10
N60 X60
N70 ...
Intermediate blocks
Intermediate blocks are permitted when 3D TRC is active. The specifications for 2D TRC apply
equally to 3D TRC.
794
Comment
; Radius=5
; Transformation selection
; 3D TRC selection (circumferential milling)
; TRC selection
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Special functions