Motion commands
4.22 Chamfer, rounding (CHF, CHR, RND, RNDM, FRC, FRCM)
Fundamentals
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
193
4.22 Chamfer, rounding (CHF, CHR, RND, RNDM, FRC, FRCM)
Function
You can insert the following elements at a contour corner:
• Chamfer or
• Rounding
If you wish to round several contour corners sequentially by the same method, use
command RNDM "Modal rounding". This address is for inserting a rounding between linear
and circle contours after each traversing block. This is, for example, for deburring sharp
workpiece edges.
You can program the feedrate for the chamfer/rounding with FRC (non-modal) or FRCM
(modal).
If FRC/FRCM is not programmed, then the normal path feedrate F is applicable.
Programming
CHF=…
Or
CHR=…
Or
RND=…
Or
RNDM=…
Or
FRC=…
Or
FRCM=…
Parameters
CHF=…
Chamfer the contour corner
Value = Length of the chamfer (unit of measurement according to G70/G71)
CHR=…
Chamfer the contour corner
Programming the chamfer in the original direction of movement.
Value = width of chamfer in direction of motion (unit of measurement as
above)
RND=…
Round the contour corner
Value = Radius of the rounding (unit of measurement according to G70/G71)
RNDM=…
Modal rounding: Rounding several consecutive contour corners in the same
way.
Value = Radius of the roundings (unit of measurement according to
G70/G71)
Rounding is deactivated with RNDM=0.
FRC=…
Non-modal feedrate for chamfer/rounding
Value = feedrate in mm/min (G94) or mm/rev (G95); FRC > 0
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