Bombastino

[Bombastino]

Hello Sheetcam friends,
Long I use the SheetCam to mill objects in different project.
Yesterday I could not mill from the material Surface.
My program for milling is Mach3 and to beginn milling i drive the router to the surface of my material . Then I make all coordinates x = 0 y = 0 and z=0
The router goes with Z=20 to the milling point and route with the negative z-coordinates.
Here must be a wrong value or it need a correction. In the G-Code file there is no minus Z value. It shows for example the Z 40 (material 30 mm ) and the secure distance.
Is there a changemeng in the program?
Thank you for youre help.
Christoph