Re: 1st dumb Question: Ball Screws

Yes you are correct that other screws can be as accurate. You know
if you quit sleeping in past 9:00 AM you can beat my answering :)
Course with 65 + groups you read It's a wonder you sleep at all.

Jeff

--- In CAD_CAM_EDM_DRO@y..., "ballendo" <ballendo@y...> wrote:
> Jeff,
>
> Sorry but I have to disagree. Positional accuracy is not inherently
> better with ballscrews. But you are spot on in saying that "Your
> application will dictate your need."
>
> Hope this helps,
>
> Ballendo (your post just beat mine)<G>
>
> --- In CAD_CAM_EDM_DRO@y..., "jeffdavis516" <cadman@p...> wrote:
> > To minimize backlash and friction.
> >
> > Your application will dictate your need. If you want or need
high
> > positional accuracy then your options will lead you to ball
screws
> > and Pre-loaded ball nuts. There are other factors as well in
> > getting high accuracy. How you hold the screw. How you drive
the
> > screw etc.
> >
> > If you don't need to hold a tight tolerance for positional
> > repeatability then you can get away with maybe Acme screws. They
> do
> > make pre-loaded Acme nuts as well.
> >
> > Accuracy only costs more money, so it's up to you.
> >
> > Jeff Davis
> > http://www.homecnc.info
> >
> >
> >
> > --- In CAD_CAM_EDM_DRO@y..., "-Flash->" <anathema@i...> wrote:
> > >
> > > I'm completely new to this game, so I have a few questions that
> > have
> > > probably been around a couple times before.
> > >
> > > I've noticed a lot of reference to ball screws among CNC fans.
> > >
> > > Why ball screws?
> > >
> > >
> > > tks,
> > > -Flash->