In the YouTube video Spherical 4-Bar Infinity Mechanism by Thang010146, Dead Points are not compensated for by mechanical means. How can Autodesk Inventor Constraints be applied to such a mechanism to ensure that it does not change "modes" into a Spherical 4-Bar Paralellogram Mechanism? I'm not looking for a mechanical solution. I'm trying to learn the constraint logic.
Here is my own, similar assembly. One of the bars keeps switching direction on me.