uh, Mariss, can you clear up my confusion ?

from post: 39596 Subject: Re: Gecko G201

<sinp> (1) A full step drive needs 200 pulses to

> turn 1 rev. A 10 uStep drive needs 2000.
> A full step drive needs 4,000 step pulses per
> second to turn a motor at 1,200 RPM, while
> the 10 uStep drive needs 40,000 for the
> same speed. Many cannot come up with the
> higher step pulse frequency. <big snip>

I was hoping I could get 4,000 steps per
second on a standard stepper, alas,
I knew that was too much to hope for.

then <snip> > Maximum speed at 250 oz-in is

> 360 full steps per second. On a 10 TPI
> leadscrew this is an agonizingly slow 10.8 IPM.
>

this is more in what I had experienced,
(actually 300 steps per second)

Since I want to drive a 120 inch long lead screw,
am I screwed ? that is roughly 12 minutes for a
10 ft travel. or if use a 0.9 deg per step,
that would double to just over 23 minutes.
now that is truly agonizing !

what is a good solution ?

How fast can you spin a servo ?

Dave
(wishing the laws of physics didn't apply
to those of us in New Jersey)

> Mariss
>
> --- In CAD_CAM_EDM_DRO@y..., "rsgoldner" <rgoldner@i...> wrote:
> > Mariss, is this right? Given my three motors at 3V/4A phase

driven

> > by G201s do I need about 60V at 10A or 60V at 2A? Big difference

in

> > cost!
> >