This is a dock for an iPhone 6+ in a Griffin Survivor case. It allows use of headphones and an apple lightning adapter while docked. And the headphones are on a slide with a toggle lever, so that I can quickly disconnect them(to pause my music with one quick action).
The dock locks the iPhone in place and a lever at the back unlocks and then undocks the phone, straight out so the connectors are not damaged.
The rubber covers of the lightning and headphone jack are gone from my griffin case, having broken off from repeated open-close use. I imagine they would get in the way if still there.
I can't imagine too many other people would want a dock like this, since the phone is old, and the case normally precludes such use. But the source is included.
Vitamin use is rather extensive. 624 bearing, odd lengths of 20mm extrusion, M3, M4, and M5 screws in various sizes. I designed around what I had in my surplus bins. Also some of the parts are very large, and might not be printable on a normal 3d printer. My second printer has a very large build volume and an e3d volcano nozzle, so some parts were designed to take advantage of that.
How I Designed This
VIdeo demonstration of the unlock and eject functionality