840D/828D SINUMERIK Operate Page 7
B507
B507
Notes
Tool nose radius correction:
Instruction Meaning
G40 Tool nose radius correction OFF (switching ON
status)
G41 Tool nose radius correction to the left of the contour
G42 Tool nose radius correction to the right of the con
tour
These instructions are modal.
For switching ON and OFF a path (at least the length of the tool nose ra-
dius) must be programmed in the active plane.
Chamfer:
Instruction Meaning
CHR= Chamfer with statement of the leg length
CHF= Statement of the length of the chamfer
These two instructions are operative block-by-block.
Rounding:
Instruction Meaning
RND= Rounding with statement of the rounding radius
The instruction is operative block-by-block.
RNDM= Modal rounding ON with statement of the radius
(after all subsequent contour elements a rounding
of the corner will ensue.)
RNDM=0 Modal rounding OFF
Hint:
Independent of the settings of “DIAMON”, “DIAMOF” or “DIAM90“, the con-
tour elements chamfer and rounding are always programmed with their
real size.
Section 5
Summary
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