HEIDENHAIN iTNC 530 (60642x-03) - Manual (Page 231)

HEIDENHAIN iTNC 530 231
6.4 P
a
th cont
ours—Car
te
sian coor
dinat
e
s
Inserting a chamfer between two straight lines
The chamfer enables you to cut off corners at the intersection of two
straight lines.
 The line blocks before and after the CHF block must be in the same
working plane as the chamfer
 The radius compensation before and after the CHF block must be the
same
 The chamfer must be machinable with the current tool
 Chamfer side length : Length of the chamfer, and if
necessary:
 Feed rate F (effective only in CHF block)
Example NC blocks X
Y
40
12 30
5
12
5
7 L X+0 Y+30 RL F300 M3
8 L X+40 IY+5
9 CHF 12 F250
10 L IX+5 Y+0
You cannot start a contour with a CHF block.
A chamfer is possible only in the working plane.
The corner point is cut off by the chamfer and is not part
of the contour.
A feed rate programmed in the CHF block is effective only
in that block. After the CHF block, the previous feed rate
becomes effective again.