Re: Why not use threaded rod leadscrews?

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Paul" <paul3507@b...> wrote:

>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "turbulatordude"
> <dave_mucha@y...> wrote:
> > as for efficencies, I have seen all-thread in the 30% range
> > ACME in the 60% and ballscrews in the 90%. If you need to spend
> $$$
> > for a motor (and driver) that is 3 times larger to compensate for
> > cheap thread..... your call.
>
>
> Thats a good point Dave. BTW How do I calculate the required motor
> torque for the X-axis that has to move the entire gantry?

Read Mariss's post of 77354