Thanks Callmedoug for the great dock design. I wanted one that had a button for waking the reader up when it goes to sleep. The button actuator is attached to a small tab that flexes when you press it.
I used Simplify 3D to slice it, but the slicer seemed to not want to make a solid connection between the actuator cylinder to the flexible tab. It's still a connection though, and the dock works as intended. Maybe a different slicer could slice it better.