RE: [CAD_CAM_EDM_DRO] Re: small servo motors keep stalling

I just read the spec sheet from jraco.com on those motors. They are rated
at 175 oz/in stall torque, 24 vdc, 8.0 amps stall current, fs 1043 rpm, 500
cpr encoders. What they don't tell us is what the running torque is. I
would think these would work fine on a properly adjusted Taig or Sherline
mill.

John Guenther
'Ye Olde Pen Maker'
Sterling, Virginia

> -----Original Message-----
> From: turbulatordude [mailto:davemucha@...]
> Sent: Friday, March 21, 2003 9:04 AM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Re: small servo motors keep stalling
>
>
> Do you have a way to check motor rotatin vs output shaft rotation ?
> I'm thinking 5 motor rev's = 9 output shaft rev's ?
>
> Checked the Jraco site, the CSP-1 motor is 5.9 : 1 so that is quite
> different than 5:9 closer to 6:1
>
> The motor is lised as having 200 pounds of thrust max.
>
> If you're doing the math on 5:9, re-do it on 5.9:1 might be a slight
> difference! :)
>
>
> Dave
>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "feck123" <feck123@a...>
> wrote:
> > yes after looking at the motors it says 5:9 ratio gear motor...is
> that good or
> > bad ? the 1/2-20 is bad too, buti gotta try to work with it for
> now...i know of
> > lots of people that have no problems with this setup using stepper
> > motors..is the servo setup a lot less tolerant of low pecision
> > machine/screw setups?..i do not know specs on the drivers and power
> > supply..i bought the whole setup from place called jra
> co.....website
> > jraco.com...the csp-1 system...it is a nice setup and should be ok -
> -if i can
> > ever figure out how to mount my motors correctly ! :) --- thanks
> for the
> > help ! Mike
>
>
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