how is wood movement managed? That is a beautiful table though
Going from my memory, I believe the platter is a resin / epoxy with veneer covering, though not a thin veneer as normally sold in stores. There is also a sensor on the bottom of the platter which reads a strobe and sends to a micro processor which controls the speed. Also I suspect the wood is very stable by nature. Hard Wood is not as unstable as some think once it is dried and kept in a climate controlled environment.
Also the Platter and plinth have lead in them for dampening. Then too, the motor is DC which is battery powered. It is well thought out and executed.