Help with animating?

[khowe9]

I have an assembly that I'm working on. It involves a crank, and I've gotten it so when I turn the crank, it turns two pulleys (yellow in picture attached). This then turns a threaed lead screw. On the lead screw is a "carriage" with a bearing in it. In real life, this rotating lead screw will cause the carriage to move down the track (there is more supporting it that I did not include in the model). I'd like to be able to show this in an animation during a design review meeting to help get this approved; however, I'm not quite sure how to do this. Any suggestions? 

[JDMather]

Rotational/Translation constraint in assembly.

Animate Constraint in Studio.