Hi,

Is there a method or simple calculation method how to know the step size of the spiral?

I would like to find a method to specify not the number of turns in a spiral but the step size following this method:

Curve spiral = NurbsCurve.CreateSpiral(Cir.Center, Cir.Plane.Normal, Cir.PointAt(0), 0,turns, Cir.Radius, Cir.Radius * 0.05);

By step size I mean this width: