One day I was on my sister's couch lying down and wanted to see some videos on my smartphone. But I did not feel like holding him.
So I decided to create this project.
The softwere used for 3D sketches was FreeCAD.
To create the g.code i used the Cura softwere.
The printer is Prusa I3 and the material PLA.

For the assembly of this small project it is necessary an M3 screw of 1cm and two springs with 2cm of length and between 4 to 5cm of diameter.

ATTENTION:
It does not work for all types of mobile phones. I know it's compatible with the Samesung galaxy S6 and S7, great part of the Huawei models. If the mobile phone model has very rounded sides it is likely that it is not compatible with this design.
If the smartphone model has the flat back then it's worth just trying.