while browsing for lathes on cl i have noticed many many brake lathes once used by automotive shops
at first i did not think much of it but there are so many it is hard not to notice
well the mystery is solved
apparently no one turns drums or rotors anymore
once they get worn to some minimum thickness they are discarded
seems wasteful but maybe there is a good reason
not sure if there is any way to turn wood on the brake lathes but maybe there is some way to repurpose the mechanism