Re: Would These Motors work for RF-45 CNC Conversion

Thanks Jon for the information. I'll keep looking for some other
motors.

Dave

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Jon Elson <elson@p...> wrote:
> brink905 wrote:
>
> >Would the C40-300 or S28-300 motors shown on the attached website
be
> >good motors for a CNC conversion of an RF-45?
> >
> >http://www.robotbooks.com/robot-motors.htm
> >
> >Encoders could be added and the proper power supply would need to
be
> >added to use Gecko or Rutex drives.
> >
> >
> They offer HUGE horsepower, but no indication they are designed for
> servo use. The things they don't specify is cogging, torque
ripple and
> velocity ripple. If these things are high, you will get "lumpy"
motion
> at low speeds. Also, they mention "capacitors included". If these
> capacitors are large, they will fry a Gecko or Rutex drive. Or,
possibly,
> the Gecko will fry the capacitors.
>
> Jon