18 years ago
So I was wondering today how we arrived at the point of having such
accurate machinery when we used to not. My limited knowledge of
machining implies that the precision of a part is limited by the
precision of the machine making it, but I'm sure there are ways to get
I asked my teacher about high-precision bearings and he suggested
centerless grinding as a possible way. Can a centerless grinder be used
(even if tedious) to manufacture bearings more precise than those
already in the grinder? Granted, it's a theoretical question--I have no
plans to make any bearings that way.
Or just in general, what are some of the straightforward methods of
making accurate parts on less accurate machines?
For that matter, how did they scale upwards to build lathes and such
many yards long?