Re: servomotor suitability???

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Erie Patsellis <erie@s...>
wrote:

> Jon, that was my first thought too, then again I'm running 850w ac
> servos on my table. anybody have any
> leads on good motors to use on a router?
>
> erie
>
> Jon Elson wrote:
>
> >>--- In CAD_CAM_EDM_DRO@yahoogroups.com, Erie Patsellis

<erie@s...>

> >>wrote:
> >>
> >>
> >>
> >>
> >>>has anyone looked at *C&H surpus #DCME9850???*
> >>>
> >>>**
> >>>
> >>>
> >>>
> >>>
> >Well, this is pretty iffy for a 200 Lb gantry. It is rated at

9.1

> >Oz-In/Amp,
> >with a 6.6 A rating listed. The peak current might be higher, I

don't

> >know. But, 6.6 A * 9.1 is only 60 Oz-In. That seems too small

for the

> >peak rating, though. The very low rotor inertial suggests this

is probably

> >an ironless rotor motor. Not a good match for driving heavy

machinery,

> >more likely for moving tape in a tape drive.
> >
> >Jon
> >
> >
> >

Erie: I looked at the latest C&H catalog last night and while there
were a couple of DC motors large enough for router work, they did
not look to have a good way to mount encoders (no rear shaft) AND
they were (IMO) too expensive for used "removed from equipment"
motors. I would shop elsewhere.

Tom C