Inserting A Chamfer Between Two Straight Lines - HEIDENHAIN TNC 640 User Manual

7

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 G24 block must be in the
same working plane as the chamfer.
The radius compensation before and after the G24 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 G24 block)
Example
N70 G01 G41 X+0 Y+30 F300 M3*
N80 X+40 G91 Y+5*
N90 G24 R12 F250*
N100 G91 X+5 G90 Y+0*
You cannot start a contour with a G24 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 G24 block is effective
only in that CHF block. After the G24 block, the previous
feed rate becomes effective again.
296
Programming Contours | Path contours  Cartesian coordinates
HEIDENHAIN | TNC 640 | ISO Programming User's Manual | 10/2017