Fagor 8055 M - Tangential Exit at the End of a Machining Operator (G38)

Programming manual
CNC 8055
CNC 8055i
PATH CONTROL
6.
·M· & ·EN· MODELS
SOFT: V02.2X
·97·
Tangential exit at the end of a machining operator (G38)
6.9 Tangential exit at the end of a machining operator (G38)
Function G38 enables the ending of a machining operation with a tangential exit of the tool. The
path should be in a straight line (G00 or G01). Otherwise, the CNC will display the corresponding
error.
Function G38 is not modal, so it should be programmed whenever a tangential exit of the tool is
required.
Value R 5.5 should always appear after G38. It also indicates the radius of the arc which the CNC
applies to get a tangential exit from the part. This R value must always be positive.
If the starting point is X0 Y30 and you wish to machine an arc (with the approach and exit paths
in a straight line), you should program :
G90 G01 X40
G02 X80 I20 J0
G00 X120
If, however, in the same example you wish the exit from machining to be done tangentially and
describing a radius of 5 mm, you should program :
G90 G01 X40
G02 G38 R5 X80 I20 J0
G00 X120