Quill fit upwards tolerance, opinions???
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.
Re: Quill fit upwards tolerance, opinions???
[QUOTE=rolfinator2002;826597]Thanks for all the feedback. I'll consider the topic closed then. I think I'll let it fly, and if I get errant finish or dimensions, then I'll rechrome the quill and bore the head to fit.[/QU
Your supposed to check it the quill fully extended out of the quill housing then put your indicator on it and pull back and forth then push from side to side . Now what do you get ??