Making joints for a curved rail

[maorbiton9654]

I want to make a constraint between the wheels (grey) and the rail (red)
That means that I will be able to move the wheels according to the rail like the possibilities that exist in the fusion joints.
I followed this guide, it didn't work so well in this case:

https://www.youtube.com/watch?v=NvDBC-44uok

[TrippyLighting]

In the video, the author creates components, not just bodies. That is essential!

Contact sets were the only thing available for the version of Fuiosn used in the video. Today you would use the tangent relationship

However, what you want to do cannot be done with Fusion. If you understand what a tangent relationship is, you'll see that this won't work for the design you have.

If you make your design in the physical world it would also not work because the inner and outer wheel need to rotate independently. Otherwise, they would not go around the curve 😉

[maorbiton9654]

Thank you for your answer
I assume that in the physical world this would not work, I am attaching another file that is more correct, is it possible to make a constraint between the wheels and the rail?

[TrippyLighting]

My recommendation would be for you to complete one of the introductory tutorial courses here:

 

1. Use only lines and arcs in your first designs.

2. Assemblies only work with components, not solid bodies. I already mentioned that in my last post.

3. The only constraint that may work, but requires a precise design, is the tangent relationship

 

It will not work in the 2nd model you attached.