Re: CNC Lathe Conversion

> >
> I've never heard of anyone doing this, as the rack always has a lot

of

> backlash and cyclical variations due to the gear tooth profiles.
>

The Frog was designed for the Taig lathe which only has a rack and
pinion drive from the factory. It works well, within it's limits.

IMO, a lead screw is the way to go though. A lot smoother operation.
Also IMO backlash isn't the issue with a lathe that it is with a
mill. Look at all the old manual lathes. They might have a 1/4 turn
of the screw backlash through the gear train, and another 0.030" in
the nut, and they can still cut well because they are always loaded
in the same direction.

Don