Adam,
As always, thanks VERY much for your help. While your solution is certainly simpler than what I have in the works, unfortunately, it won’t accomplish what I’m going for.
If you take a look at the file I attached to my post, you should be able to see what I mean.
I have my object moving right/left repeat, within a boolean to reveal a logo. Each time my moving object reaches the farmost left/right point (increment of 50% on the slider), I want the Posemorph to increase by a 10% step, first on the “Cube-Side 1” when the moving object reaches the Right, then “Cube-Side 2” when it reaches the right.. and so on.
In that way, the printhead (which I haven’t modeled yet) will appear to be “printing” the logo as it moves both right and left.