Kevin. Preload is correct when there is no play in de spindle.
HI i have a a question when you removed the main spindel was it easy ? hot do you insure you have put it back with the same thust applied?
Nice job, congratulation is very interesting, I' have own a Schaublin 1966, I bought it in 2003. I writing from Lima Perú.
Synes alle maskinene ser meget flotte ut. Dette er bra. Har lyst til å lage en selv.