Depending on how exactly is it made, it could have fewer moving parts than it looks like. The tilt seems to be controlled on a whole module at a time level, and I'm guessing all the tops of a module might be rotating in the same direction. That would still leave a lot of linkages and bushings or bearings, but make it easily serviceable by just replacing them. The modular design seems to indicate you could pick a whole hexagon tile, replace it with a working one, and service the damaged one in the background.