HEIDENHAIN TNC 320 (340 551-02) - Manual (Page 129)

HEIDENHAIN TNC 320 129
6.4 P
a
th Cont
ours—Car
te
sian Coor
dinat
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s
Example NC blocks
Actual position capture
You can also generate a straight-line block (L block) by using the
ACTUAL-POSITION-CAPTURE key:
8 In the Manual Operation mode, move the tool to the position you
wish to capture.
8 Switch the screen display to Programming and Editing.
8 Select the program block after which you want to insert the L block.
8 Press the ACTUAL-POSITION-CAPTURE key: The
TNC generates an L block with the actual position
coordinates.
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.
„ The chamfer must be able to be machined with the current tool.
8 Chamfer side length: Length of the chamfer
Further entries, if necessary:
8 Feed rate F (only effective in CHF block)
Example NC blocks
7 L X+10 Y+40 RL F200 M3
8 L IX+20 IY-15
9 L X+60 IY-10
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.
X
Y
40
12 30
5
12
5