Re: Newb question....

GREAT idea John. We await your results.

>
> Ok, this is what I thought.
>
> With all the questions about Stepper vs Servo what might be

interesting to

> try is taking the Pico Systems USC with the Gecko Servo Interface

and

> compare the performance of a Stepper motor vs a DC motor (I say DC

motor

> instead of servo to try and avoid confusion). The point being to

have a

> servo environment with as many elements the same like the software,

encoder

> resolution, power supply size, etc. in order to measure

the "efficiency"

> (for lack of a better term) of each motor. Perhaps using motors of

the

> same frame size. I realize that the Gecko 2xx and 3xx series don't

work at

> all the same way to move the motor but it would look the same to
> EMC. Also, I realize that Steppers and Servos don't usually work

in the

> same voltage/amperage range but the bigger power supplies also cost

more so

> it may be a fair handicap. I suspect the result would be that the

DC motor

> works better at medium to higher RPM but at least all the other

elements

> which confuse the issue would be eliminated (like the general

assumption

> that Stepper systems are open loop).
>
>
>
> - John