PLEASE LOOK AT THE ASSEMBLY ABOVE AND COMPARE TO THIS ONE!!!!
1. Why does an animation with transitional contraints sometimes only work for let's say three times and then you have to reset the dimensions to be able to run it again? This thing pops up "Model has failed to update for the current time. Please correct the animation definition."
2. I have, as you can see, created a cylinder that has a transitional contraint with the path. I want it to be mated/flushed with the arm so that I can change the distance between them as they still are moving along the same path. This is of course only doable if you have an assembly and have so far only figured out how to animate solids along the same path with.
3. Is it possible to hide a solid during an animation?
You have answered you question in the last post, with the phrase "this is doeable in a assembly". If you want items to articulate and move then you should be working in the Assembly mode.