I flipped the position of the Apple Watch stand from the right side to the left side. I flipped the iPhone Dock so the glue point is on the left hand side. I also scaled the iPhone dock by 1.03 to fit my particular apple case. It is a little roomy for a naked iPhone but works great with the Apple Leather and Karvt iPhone 6+ cases.
Printer on a Makerbot 2. 10% infill, Layer Height .2, 2 Shells, PLA temp 222F.
Print both files separately and glue together. I did not require supports after I flipped the Apple Watch dock STL. I had to file the cable channel on the Apple Watch dock afterward. I secured the pieces together with Loctite.