On Thu, 11 Sep 2008 16:44:48 -0700, "Michael Koblic"
wrote:

If you are facing a 5" diameter work in a lathe do you increase the RPMs as
you near the center?


Yes.

Most CNC lathes have a feature that does this for you when you program
the appropriate command

You also have to do the same when using a cut off tool

However...in most HSM applications, you really dont need to do so.


Gunner