B/S vs. acme was Re: What makes a machine CNC ready?

>
> 11) acme, as well as regular 60-degree screws generally have higher

> count per unit of length, meaning more screw rotations are needed to

> the screw the same distance compared to ball screws. This has several
> advantages, one of which being that you can use a motor with less

> drive the screw. Another advantage is that you can use a motor with

> angular resolution to achieve the same precision as you would have

> fancier motor and a ball screw. Of course, there are disadvantages

> It all depends on what you are trying to do...
>
> Vlad
>