I was asked to animate the process of packaging some products into a box through the machine. It is a prototype so it can be built. I decided to animate in Unreal Engine because the CAD model was too heavy for any 3D software to run it smoothly. 

Package model made in MODO. The client didn't want it detailed with texture and shading.

Animation proccess of all the parts in MODO then taken to Unreal Engine 

Box rigged to close and used morph maps to deform and make it flat

I decided to animate the simple part of the chains and then replicate it in unreal moving its timing inside the timeline 

This is the animation for the closing parts, it is a compound made by locators that have some direction and position constraints. the only thing animated is the highlighted cylinder part. Locators respond to the position of the principal locator and the rotation.