The parts need to printed separately and then assembled for it to spin. This design requires a single r188 bearing.
Print in these groupings (Times are base on PLA with 10% infill on a Qiditech Dual extrusion printer):
1. iphone-7-case: this is the actual case for the phone. (~1 hour, no raft, no supports)
2. Outer-circle-bearing-cap + numbers (+ number-circles optional): This is the lower circle that seres as a bearing cap. You can include the "number-circles" file as well if you want the circles around the numbers to be a different color than the rest of the base. (~30 minutes without "number-circles," no raft, no supports) *Note: Use the "numbers-bigger-digits" file if your printer has difficulty extruding the narrower digits in the original "numbers" file.
3. Middle-circle-w-holes + pin: The ball bearing fits in the center hole. One assembled, you can use the outer holes to "spin" the rotary phone. (~25 minutes, with minimal supports, no raft)
4: Inner-circle-bearing-cap: This is the top circle and serves as the other bearing cap. (~10 minutes, no rafts, no supports)