Next is a plane along path. This is one of the most important and used options for creating complicated geometries. I'm going to construct plane along path. For this first I need a path. So I'm going to the sketching plane and constructing a path using this plane option. Now you can see my path, I'm going to construct plane along this path.

So now I can select the spot. I'm going to get plane which I can move along this path and the plane is going to be perpendicular to the plane in which the path lies. I can also give the percentage like point five or 50% of the length of the path Instead of a spline, I can also select adjust which have been created. So I'm keeping it in the toolbar. Now you can see I've selected the circular path. I'm going to create a spline on this face and extrude this.

Now again, I'm going to this option and you can see I can create a plane along this path.