You wouldn’t think it would be hard to animate a spring. Seriously. It just expands and contracts. Two steps. You should be able to morph between the two without problems.  Right?  Wrong.  Check out this example: In Example A. we have our basic spring.  It was created by making a spline with Paul’s Spring Tool and then rail extruding a disc along a it. The Spring tool was then used again with a different offset to create the expanded spring. Again, a disc with the same number of sides was used and rail extruded along the results. The objects in Example A. and B. have the same number of points which makes them a prime candidate for morphing. However morphing from object A to Object B results in Example C. Typically, this type of effect is the result of point order problems.  No problem. You can run 3DD Mesh Reknitter to realign the point order. However, when I did this, it didn’t fix the problem. I still ended up with Example C. While the following solution may seem obvious, it did escape me. So in the spirit of saving time for the next person who attempts this, here are the steps needed to properly get a spring ready for animation. The object you create from the steps above can be animated very simply by morphing in Layout.  Your results will look like this: