Mechanical Phone Stand - with printed spring

My most ambitious project up-to-date.
Went through a couple of prototypes, so the tolerances are dialed in accurately for 0.2mm layer height.
I plan on designing and uploading additional options for the stand and gripper-arms.
Everything is printed with 15% infill, only the screw needs 100%.
Any feedback is more than welcome, since I would like to improve on this design.

Important notice:

• When printing use support block on the inside of the threaded hole on the stand.
  (otherwise almost impossible to remove)

25.10.2019 -

• Added STAND V.2 & V.3
• Added ARMS V.2 for shorter phones (iPhone 8 formfactor)

https://youtu.be/3pkDMOCfvL8

Also, if I there is something I can design for you, you can always drop me a line on fiverr:
https://www.fiverr.com/share/pdgm9N