Hello, how to model HB7808 arc end tooth with UG?

There are many methods, such as advanced bending, edge wrapping, secondary contour bending and lofting bending, depending on the effect you want. Advanced bending can bend an arc edge, but it can only limit the plane once, and the bending can only be a straight line, not an arc edge.

Lofting is divided into basic lofting and secondary lofting, and according to the effect, it is divided into straight lofting and circular lofting. As long as it involves arc bending, arc bending and arc space lofting, it is a complicated problem. Many of them cannot be generated or flattened when drawing, so linear lofting is much easier. There is one detail to pay attention to. I tried to draw two lines of variable lofting sheet metal in the lofting command, but I failed to draw two lines first and then click the lofting command. Strangely, contour bending is divided into basic and quadratic.

They are all separated from the basic surface, but the curved edge of the secondary profile is merged with the basic surface. Note that curved edges of minor contours can only be drawn as straight lines, and cannot be drawn as other straight lines. If you want an arc profile, draw a straight line first, and then change the bending radius. If you draw an arc on a straight line edge, the successful minor profile bend edge will not merge with the basic surface, but separate. As long as it involves arc bending, arc bending and arc space lofting, it is a complicated problem, and many of them cannot be generated or flattened during drawing. Straight lines are easier to handle. In short, the function of lofting is a little more flexible than contour bending. As shown in the figure, it can also realize three-dimensional space, which is flexible in folding and bending, but it is only used for folding and has limited use!