Zenfone Max Pro M1 Case - Heavy Duty

Zenfone Max Pro M1 case protection, military style.
Is composed by two parts, the inner printed in TPU and the outer in PLA, PTG.
I chose to print with TPU 85A and PLA but filament with better temperature characteristics would be more appropriate.
Fixing is done with 6 M2.5 screws and 6 insertable nuts.
The screw heads must be adjusted to a diameter of 4.5mm. This is easily done using a drill and a file.
I printed the TPU with 20% infill and zero layers on both top/bottom sides to make the piece more elastic.
Note: The model was tested on a real phone.