Re: Approx max rpm for this stepper motor?

Hi,

3,100 full steps per second = 15.5 revs/sec.
15/5 revs/sec = 930 RPM
930 RPM / 80 = 11.625 RPM

Guessing a 5TPI leadscrew, (1/.2 times 2 pi) times 12 times 65 ft-lbs
= 24,492 lbs of thrust. You could move walls, if not the entire house
with that. But VERY slowly of course. ((11.625 RPM/60)/5 =
0.03875"/sec). You would have 25.8 seconds for a wall to move 1".
Long enough to hit the E-stop I guess. ;-)

Mariss

--- In CAD_CAM_EDM_DRO@y..., Jon Anderson <janders@n...> wrote:
> mariss92705@y... wrote:
>
> > Specifically, 80 X 156 oz-in equals 65 ft-lbs of torque, 3100
full-
> > steps per sec. divided by 80 equals 11.625 RPM. Slow but strong!
>
> Hmm, I got my math wrong. Those figures would give me about
4.5"/minute.
> Might have to rethink this a bit...
>
> Jon