Problem with G02 en Plane X-Z with Mach3

[mariano_mdf]

Hello,

I have a problem with G02 code in XZ plane, with the last version of Mach3.
This code should generate two semi-circle that form a circle, but the G02 do the same that G03:

G49 G40 G80 G50 G61 G90
G54
G92.1
G21 (mm)
S1000

(Set XZ Plane)
G18

G01 X50

(First ARC G02)
G01 z-14.500000
(This is the error
G02 X50 z-20.500000 I0 k-3.000000
(if i would use G03 instead G02, math3 will produce the same job!! )

(Second Arc G03)
G01 X50
G01 z-14.500000
G03 X50 z-20.500000 I0 k-3.000000


Note: The code is only to show the problem. I think there is but and the G02 is not woking in XZ Plane:
The exact same code works fine in Mach2.
The same example, but in XY Plane, works fine in Mach3.
The problem ocurrs only wih G02 with G18.

Any ideas?
Thanks in advance!
Mariano

[ger21]

Either send this to Art or post in on the Yahoo group.