Re: Max feedrate of ball screws?

--- In CAD_CAM_EDM_DRO@y..., "dgmachinist" <scsm@m...> wrote:

> --- In CAD_CAM_EDM_DRO@y..., "Robert Campbell" <bob@c...> wrote:
> > Seth,
> >
> > The current trend is to go to a rotating nut. The ball screw is
> then fixed
> > at both ends. Some machine go up to about 3,000 inches per

minute.

> >
> > Bob Campbell
>
>
> Bob,
>
> How in the good lord's name do I make a rotating nut? It's a
> moving gantry..... Any ideas? Why is it different when the nut
> rotates? Vibration?
>
> > Seth

Guys,

Other than a rotating nut, (which I may end up going with)
what other method is there to acheive high travel speeds (300+ IPM)
I really like the idea of a rotating nut, but unless someone has
already built one and is willing to release the design...
It looks like it will be a complex engineering progect, and rather
expensive to machine...


Seth