Originally Posted by
rolfinator2002
I know the factory quill fit is 0.0003-0.0005".
After stripping my head and cleaning the bore, my 0.0001" increment dialtest measurement , with dialtest located w/i 1/2" from the housing, with the quill fully retracted, and fully extended is the same, and approximately 0.0008" for both x and y axis. Tells me the bore is not measurably tapered. Lateral force on the quill in both cases was about 15 lbs.
Does Bridgeport advertise a service limit, or max recommended limit for this dimension?
The difference between a great mill and a so-so mill is tolerance.
Can I expect good cnc operation, or is this getting into "cheap" territory?
I have lots of machine experience, but this is my first mill rebuild.
Opinions highly valued.