This is for a True Life Test I'm going to be running and I need some
advice from the people who have done this or think they have the
My question is when you have a CNC Lathe set to Metric Dimensioning,
will it truly give you smaller increment control than if you have it
in INCH dimensioning. I would think that 3 decimal places in Metric
Mode is calculating at a finer resolution than 4 decimal places in
The last week of July I am traveling to New York to help with a
project that has a .019" diameter hole drilled in it and needs a
profile (radius-undercut recess) machined .004" per side into it,
about 1/8" inside the bore. The neck diameter of this tool is around .
010" and actually has what looks to be a helical flute on it for chip
flow, if you can believe it or not.
I had Performance Micro Tool make some sample of a boring bar to
this. is their website. If you want to see some really
small stuff check out the site and look at NANO TOOLS button on the
left side of the page.
So my question is when I want to take depths of cut in the tenths (.
0001") and feedrates possibly in millionths (.00001") can it be done
in either mode accurately?
Thanks for the help in advance, it's greatly appreciated.
- posted 13 years ago