CNC Z32 - Programming Guide (LATHES)
Generally, the programming rules for the profile are the following:
-
the profile must always be defined starting form the raw dimensions
-
the programmed profile (raw + finished) must define a close area, i.e. the first point of the raw must
coincide with the last of the finished
-
the profile must be defined in
clockwise
or in
counterclockwise
direction, function of the pass
direction and the pass increment. the pass depth (
K
) must be defined as positive or negative, function of
the desired machining.
The following figure shows the eight profiles (4 clockwise and 4 counterclockwise) representing the various
possible combinations with passes parallel to the axes:
G41
G42
G41
G42
K>0
K<0
NG0
NG180
NG-90
NG-90
K>0
K<0
K>0
K<0
NG90
NG90
NG0
NG180
K<0
K>0
G42
G41
G41
G42
X
X
Z
Z
The passes may also be not parallel to the axes. In this case the NG value and the K sign must be chosen
according to the following figure:
NG-45
X
X
Z
Z
G41
G42
K>0
K<0
G42
G41
K<0
K>0
G42
G41
G41
G42
K<0
K<0
K>0
K>0
NG135
NG135
NG45
NG45
NG-45
NG-135
NG-45
NG-135
NG-135
NG135
NG-45
NG45
NG-135
NG135
NG45
102
