Hi there,
This is Bogdan from Romania.
I'm a mechanical engineer - specialized in the industrial robotic field, 3D designer and modeler (from time to time and some projects I could make the functional prototype too).
I'm doing product design, industrial design, reverse engineering, ideation, etc.
I have over 15 years experience working on various systems/devices across multiple industries, from concept to launch.
I guess you want a headrest which to accommodate different tablet types/sizes, eventually comprising a base and swappable arms for different ranges, and also to fit all kind of headrests...
Also possible to have a joint to allow adjustment in the front plane, power cord to connect to the charger, shade screen..., etc, etc...
For any more questions we could chat here.
Regards
Bogdan