Siemens SINUMERIK 840D sl Programming Manual page 326

Fundamentals
2.12 Coordinate transformations (frames)
Example
Program code
N10 G17 G54
N20 TRANS X15 Y15
N30 L10
N40 TRANS X40 Y20
N50 AROT RPL=35
N60 ASCALE X0.7 Y0.7
N70 L10
N80G0 X300 Y100 M30
Further information
SCALE X... Y... Z...
You can specify an individual scale factor for each axis, by which the shape is to be reduced or
enlarged. The scale refers to the workpiece coordinate system set with G54 to G57, G505 to
G599.
NOTICE
No original frame
The SCALE command resets all frame components of the previously activated programmable
frame.
326
The pocket occurs twice on this workpiece, but
with different sizes and rotated in relation to
one another. The machining sequence is stor‐
ed in the subprogram.
The required workpiece zeroes are set with
zero offset and rotation, the contour is scaled
down with scaling and the subprogram is then
called again.
Comment
; Working plane X/Y, workpiece zero
; Absolute offset
; Machine large pocket
; Absolute offset
; Rotation in the plane through 35°
; Scaling factor for the small pocket
; Machine small pocket
; Retraction, end of program
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
NC programming