CNC 8035 - Programming manual - Fagor Automation

8.2.6 Cancellation of tool radius compensation (G40)
Tool radius compensation is cancelled by using function G40.
It should be remembered that canceling radius compensation (G40) can only be done in a block
in which a straight-line movement is programmed (G00 or G01). If G40 is programmed while
functions G02 or G03 are active, the CNC displays the corresponding error message.
We now show different cases of starting tool radius compensation, in which the programmed path
is represented by a thick line and the tool center path with a thin line.
End of compensation without programming a movement
After cancelling the compensation, it could happen that the plane axes do not get involved in the
first motion block either because they have not been programmed or because the same point as
the tool position has been programmed or because a null incremental move has been programmed.
In this case, the compensation is canceled in the current tool position; depending on the last
movement executed in the plane, the tool moves to the end point without compensating the
programmed path.
Y
X
· · ·
G90
G01 X-30
G01 G40 X-30
G01 X25 Y-25
· · ·
(X0 Y0)
Y
(X0 Y0)
X
· · ·
G90
G03 X-20 Y-20 I0 J-20
G91 G40 Y0
G01 X-20
· · ·
Programming manual
TOOL COMPENSATION
Tool radius compensation 8.
CNC 8035
·T· MODEL
(SOFT V16.3X)
·143·