Minimized design mobile stand.
It can supports almost smartphones exists with 2 angles you want.
Also prepared strap hole to carry out anywhere to go.
To build up complete style, need toothpicks and magnet to support close condition.
But clearance setting is small, so you can use no magnet and screws (or metal parts).
This is the another basic shape of minimized smartphone stand.
You can refer to my another 3D data. (rectangular shape)
I made with ABS, UP2.
Recommend pitch is less than 0.2mm.