Art,
Seems a good assumption for all but tapered threads. Comsider pipe
threads: If cut "backwards" and "upside down" (which is common for
many threads, especially blind types) using constant SFPM, the
spindle will increase in speed as the diameter is decreased...
Just a heads up... (probably can "fix" it with a "Don't do this"<G>)
Ballendo
--- In mach1mach2cnc@..., Art <fenerty@a...> wrote:
LatheHeads...
The design assumes the spindle will not speed up
above the starting RPM during a thread (hopefully a good
assumption) so time
