FPV Cam Angle Tuning Helper

This thing helps to set your FPV cam to a specific angle.
The idea is simple, there are some holes in it, if you can see through all holes in the center of your fpv screen, your cam is angled exactly to a specific angle. 20-65° is supported by this thing in 5° steps.
There is a full and a skinned STL available. The skinned one simply saves some filament and print time without sacrifying much functionality.
Feel free to modify everything, you can download FreeCAD project files as well.