Warning, the hinge has a safety problem, I just found out there is 10mm gaps when I open the case, it hurt my finger. (updated on June 28th, 2022)
file hinge v2.stl
Printer is Prusa I3
Setting is 0.2mm with support material
Screws is M2.5
file Hinge-270 v5 M3 with 3mm margin.stl, I modified the file with 3mm margin which make the drilling on the part easier.
The author hasn't provided the model origin yet.