Re: Rotary gaps -- machine work

Hi Chip,

    Without getting into  lathe / alignment etc.
 (a chase your tail nightmare )-------------
I would suggest simply mounting the completed 
shaft /hub / rotor assembly in the lathe with a 
tail-stock live center & facing both sides of the disk true
to the shaft --- The minor trimming of the glass fibers 
will not weaken the disk -- as the laminations 
are not disturbed ---- sand off the "fuzzies"
& coat with laquer or whatever ----- 
this should be a sufficient "balancing act "
for the rated speeds of the rotor.

Hope this helps--