This is simple tripod mount for iPhone Plus and X - when they are in silicone case.
One side is for Plus models and the other side is for X model.
Print with 0.1mm layer height, 3+ shells, and 50%+ infill. Screwing the bolt into the 1/4" plastic nut is tight but works. Don't use it in motion, as the plastic nut and the clip will not handle a lot of force.
Kudos go to Irena Koenig who inspired this model.
I used PolyMax PolyPlus PLA which has enough tensile strength and flex for my purpose. But of course, it will work with other filaments too.
I used 3 shell layers so that there is enough plastic around the threads of the nut. The hexagonal infill makes it robust enough.
0.1mm resolution is helpful for good enough quality threads.