hey, here you can load an .3mf of my phoneholder. You can adjust the angle in 5 ways.

You need:

4x M2*6 Screws

2x bearing 3*7*3

1x M3*25 Screw

1x M3*20 Screw

2x 4,5*10 Spring

2x 4mm Steelball

Have fun and share your thoughts