recomendations for CNC'ing a lathe ( was Re: Lathes

I should have changed the subject line for this post.

any recomendations on motor sizes ?
software ?

Dave


--- In CAD_CAM_EDM_DRO@yahoogroups.com, "turbulatordude
<davemucha@j...>" <davemucha@j...> wrote:

> I re-built and rewired the fwd and rev starters on a small (12x48)
> lathe today. in talking we spoke about the CNC table for a mill

and

> how much 'modification' to the Bridgeport he would accept.
>
> seems the fine feed is a prime candidate for CNC as it is easily
> connected, easily removed and does not effect the machine.
>
> OK, on to the lathe.
>
> While we were talking, he asked me what would it take to convert an
> engine lathe to CNC and still have full manual use ?
>
> As I see it, one would need some beefy steppers or servos. if I was
> to undertake this project, he offered to pay for all the parts, and
> in exchange, offer free use of the shop. I'm not sure I have the
> time to do this, but I am interested in putting the basics together.
>
> What is the best way to CNC a lathe ? servo's or steppers ?
> if one is threading, but not via CNC would it be easy to set a stop
> to the cross slide to retrace at the end of the thread ?
>
> What software would be most useful for a lathe CNC operation ?
>
> Currently I use excel for some of my g-code, and hand enter

others.

> this could be as simple as hand or more automated, as we are both
> somewhat conversant with g-code.
>
>
> Dave
>
>
>
>
>
>
>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Alan Trest
> <cncprojects0@h...>" <cncprojects0@h...> wrote:
> > Hi Bill,
> >
> > This is off topic here and the list owner does not allow these
> types
> > of questions.
> >
> > Try this group for your answer>
> > http://groups.yahoo.com/group/9x20Lathe/?yguid=129236731
> >
> > They will help you out there with the answer.
> >
> > Try to keep questions in the Cad,cam,edm,dro area and you are in
> the
> > right place. Folks here will be glad to help in these areas.
> >
> > Alan
> >
> >
> >
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, ccq@x wrote:
> > > Hi gang;
> > >
> > > Got a question: Whats the difference between a bench lathe and
> an
> > engine lathe?
> > > What will one do that the other won't, etc?
> > >
> > > Bill
> > >
> > > --