HEIDENHAIN TNC 406 - Manual (Page 117)

96 6 Programming: Programming Contours
6.4 P
ath Cont
ours — Car
tesian Coor
dinat
es
Inserting a chamfer CHF between two straight
lines
The chamfer enables you to cut off corners at the intersection of two
straight lines.
„ The blocks before and after the CHF block must be in the same
working plane.
„ The radius compensation before and after the chamfer block must
be the same.
„ An inside chamfer must be large enough to accommodate the
current tool.
(The tool radius in the illustration at bottom right is too large)
8 Chamfer side length: Input the length L without
entering an axis designation
Example NC blocks
7 L X+0 Y+30 RL F M
8 L X+40 IY+5 R F M
9 L 12
10 L IX+5 Y+0 R F M
„ You cannot start a contour with a CHF block.
„ A chamfer is possible only in the working plane.
„ The feed rate for chamfering is the same as for the
preceding block.
„
The corner point E is cut off by the chamfer and is not
part of the contour.
X
Y
1
E
2
Z
S
X
Y
40
12 30
5
12
5