By default, FeatureCAM outputs the upper and lower toolpaths at the same planes as the feature is programmed. For example, if the feature is at Z0 and has a depth of 1, then the upper toolpath is at Z0 and the lower toolpath is at Z-1.
Some machines need the output to be at the Z planes of the upper and lower wire guides, so FeatureCAM must project the toolpaths outwards to the location of the guides. For example, if the wire guides are at Z-2 and Z10, we need to project the upper toolpath to Z10 and the lower toolpath to Z-2.
For these machines, select Generate 4 axis toolpath at the wire guide planes and enter the Z planes of the Upper guide and Lower guide.
In the image below, is the original lower toolpath, is the toolpath at the wire guide plane.