Compensation At The Outside Corners (G450, G451, Disc) - Siemens Sinumerik 840D sl Programming Manual

Tool radius compensation

11.3 Compensation at the outside corners (G450, G451, DISC)

11.3 Compensation at the outside corners (G450, G451, DISC)
With tool radius compensation activated (G41/G42), command G450 or G451 can be used to
define the course of the compensated tool path when traveling around outside corners:
With G450, the tool center point travels around
the workpiece corner across an arc with tool
radius.
Note
G450/G451 is also used to define the approach path with KONT active and approach point
behind the contour (see "Approaching and leaving contour (NORM, KONT, KONTC, KONTT)
(Page 256)").
The DISC command can be used to distort the transition circles with G450, thereby producing
sharper contour corners.
Syntax
G450 [DISC=<value>]
G451
264
With G451, the tool center point approaches
the intersection of the two equidistants which
lie in the distance between the tool radius and
the programmed contour. G451 applies only to
circles and straight lines.
Programming Manual, 01/2015, 6FC5398-1BP40-5BA2
Fundamentals