Good initiative!
Through experience, I strongly suggest the following:
* purchase off the shelf platter (many offerings, "Scheu" is one of those) and well -- or tyou can design & machine he latter yourself (a mechanical engineer will help tremendously).
* work on a (electromagnetic) elevation system for the platter -- i.e. a magnetic bearing; get rid of the bearings friction.
Good luck!
Through experience, I strongly suggest the following:
* purchase off the shelf platter (many offerings, "Scheu" is one of those) and well -- or tyou can design & machine he latter yourself (a mechanical engineer will help tremendously).
* work on a (electromagnetic) elevation system for the platter -- i.e. a magnetic bearing; get rid of the bearings friction.
Good luck!