Simple and functional. I love it!
Thank you!

It looks amazing but sadly my phone case is too big so I will be printing a bigger one
Works well for plugable UD-3900PDZ docking station at 106.25% scaling.
Nice idea,
My first attempt was also a fail because it fused together.
On the second print with PETG, 0,3mm Draft, and the gap closing resolution set to 0,025mm in PS - it was easy to break free.
A bit of silicone spray in the hinge and it went all smooth. (edited)
Followed the directions indicated in the comments to close gap resolution from 0.049 to 0.025 in Bambu slicer, and it printed beautifully. Thanks for the solid design, OP!
Printed in PLA. At the first print i lost adhesion. I added brims on the second one, and those turned out great.