Adjustable Smartphone Stand / Tablet Stand

This is simple adjustable smartphone and tablet stand.
You can easily and quickly change the angle.
There is a rubber band inside.

----------
Update(2020/8/23):

In the current condition of my printer, gear part was too tight. So, I made the gap slightly larger. Only Male was modified and it became v3.2.

The diameter of cylindrical part of V32b is 0.1mm smaller than that of V32a.
V32a-Male.stl and V32b-Male.stl are only for checking gaps.
Please print SmartPhone(Wide)StandV31-Female.stl, V32a-Male.stl and V32b-Male.stl first to find good combination,
then print SmartPhone(Wide)StandV32?-Male.stl.

If the cap is too tight, please shrink only x and y of cap slightly.

This is remix of https://www.thingiverse.com/thing:3048358
To increase the rigidity, the legs became thicker.
And I made a movie file for assembly.
https://youtu.be/WAh2LkIBGTM

----------
Update(2020/5/3):
I made thinner models for Male of V31.
Also, small test models were made.

--------