Siemens SINUMERIK 828D Programming Manual page 308

Tool radius compensation
10.3 Compensation at the outside corners (G450, G451, DISC)
Program code
N10 G17 T1 G0 X35 Y0 Z0 F500
N20 G1 Z-5
N30 G41 KONT G450 X10 Y10
N40 Y60
N50 X50 Y30
N60 X10 Y10
N80 G40 X-20 Y50
N90 G0 Y100
N100 X200 M30
Further information
G450/G451
At intermediate point P*, the control executes operations such as infeed movements or
switching functions. These operations are programmed in blocks inserted between the two
blocks forming the corner.
With
DISC
When
magnified height – the result is transition ellipses or parabolas or hyperbolas:
An upper limit can be defined in machine data – generally DISC=50.
308
the transition circle belongs to the next travel command with respect to the data.
G450
values greater than 0 are specified, intermediate circles are shown with a
DISC
Comment
; Starting conditions
; Feed in tool.
; Activate TRC with KONT approach/retract mode
and corner behavior G450.
; Mill the contour.
; Deactivate compensation mode, retraction on
transition circle.
Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
Fundamentals