Problem with my motion study Volume 2

@SEPM: Yes, that's exactly right.

 

I think I succeeded thanks to you.

 

I did an exploded view and then a movement study by putting the explode view and bringing it together.

 

 

That's what I proposed in my message of July 28, 2014 - 14:18 ;-)

That's right :-)

 

I still have a lot to learn ^^