Re: 1st dumb Question: Ball Screws

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->