When Machinekit’s interpreter was first written, it was designed for mills. That is why the default plane is XY (G17). A normal lathe only uses the XZ plane (G18). To change the default plane place the following line in the .ini file in the RS274NGC section.
RS274NGC_STARTUP_CODE = G18
The above can be overwritten in a g code program so always set important things in the preamble of the g code file.
The following .ini settings are needed for lathe mode in Axis in addition to or replacing normal settings in the .ini file.
[DISPLAY] DISPLAY = axis LATHE = 1 [TRAJ] AXES = 3 COORDINATES = X Z [AXIS_0] ... [AXIS_2] ...