Re: How much torque is enough? (Was: COMPLETE 3 axis CNC...)

>
> The first motor was one of the "standard" 200 oz-in 1A/phase motors.

> max half-step rate with this motor before losing steps was 1250
> half-steps/sec, equating to around 9.4 IPM (20 TPI leadscrews).
>
> The second was a 254 oz-in, 2.5A/phase, so with the reduced (2A) drive,
> effectively a 211 oz-in motor, so very comparable to the first in

> torque. This managed 4000 half-steps/sec or 30 IPM.
>
> The third was a 140 oz-in, 3A/phase motor; again, with the reduced

> effectively down-rated to 93 oz-in. This managed 7000

> 52.5 IPM.
>