Re: ACME or Ball?

Hi I am reading post interested.

My dude is, if I am going to try trapezoidal Screw in order to build
a xyz table of 2500 mm x 1500 mm x 100 mm, what is the suitable anti backsl=
ash nut.

I dont see anti backslash for Acme or Trapezoidal.
It is suppose plastic nut is zero backslash ?

How people is resolving this problem ?

Thanks in Advance





--- In CAD_CAM_EDM_DRO@yahoogroups.com, Thomas Fritz <tomfritz@d...> wrote:=

> ghidera2000 wrote:
> > I was searching for someplace to purchase BS&A leadscrews and nuts
> > on Yahoo and Google, keep finding reviews and the manufacturers but
> > no-place actually selling them. Anyone have some links? Prefer in
> > Canada but gotta go with whomever has them :D
>
> One place I know, which I can buy over the phone very promptly, but are
> slow with send a price quote through email:
>
> www.roton.com
>
> Their website is nice, as it has probably all the technical data you
> need to use thier products.
>
> I'm not sure, however, about the lead error of their stuff...I think
> they make everything with precision roll-forming, which is less
> expensive than ground ballscrews, but if I remember correctly...no wait, =

> I just picked it out of the website:
>
> Lead Error
> The deviation from nominal lead resulting from manufacturing variations. =

> Standard lead error tolerances for Ballscrews are .010 in. per foot.
> Lead errors for Acme, Hilead® and Torqspline® series leadscrews are .009 =

> in. per foot with precision tolerances of .006 and .003 available in
> selected sizes. All tolerances apply plus and minus, however, thread
> rolled product errors are generally the same throughout the entire screw =

> and can be easily compensated for with appropriate profiling software.