Lathe software:

This is really all Bill's fault. ( :-))..but obviously there is some
interest in lathe control.

From my point of view there are two approaches to lathe cnc.

1. position of the cutting tool is locked (a slave) to a RATIO of the
spindle speed. That is just like the normal gears on a lathe.

2. position of the cutting tool is a calculated tool path but of course
still driven by an index off the spindle.

One still must do something about spindle index to pick up a thread at
the proper point.

One of the main issues would seem to me to be: at what speed must one
update spindle position to get good cuts.

At 60-70 rpm is takes a REALLY long time for one rotation.
At a couple of thou or better it happens pretty fast....by mechanical
standards. All of this is slow in the electronic realm.

Ideas, comments;
Tnx

Dave