CNC 8035 - Programming manual - Fagor Automation

6.8 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.
Example programming the X axis in radius.
If the starting point is X0 Y30 and you wish to machine an arc (the exit paths being straight) you
must program:
G90 G02 X30 Z30 R20
G01 X30 Z10
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 G02 G38 R5 X30 Z30 R20
G00 X30 Z10
Programming manual
PATH CONTROL
Tangential exit at the end of a machining operator (G38) 6.
CNC 8035
·T· MODEL
(SOFT V16.3X)
·101·