Do you know, that… ?

If you are using the operation Loft or draw Boundary and at the same time you use guide curves, This field angle may receive non-zero value. This applies both to solid modeling and surface.

Value other than zero in this field indicates, that somewhere lies the mistake of inconsistent alignment. Means, that if the profile (e.g. the initial) it is to compensate “normal to”, curve at this point must also be aligned perpendicular.

In such a situation? Be sure to check the alignment of the curve (s) leading. In this embodiment lacking the relationship curve of an auxiliary line. As for the relationship horizontally, by which tangentially a related spline curve does not create angular deviation at this point.

After changing relationship sketch displays the angle 0.00degrees.

In the absence of the initial alignment profile, despite the use of guide curve angle error does not occur.