Re: Is this motor workable?

> That makes sense, but what I want to know is if the 30/40lb-in

torque is the

> required input at the leadscrew.

Those numbers are the motor torque...Then it is reduced 2-1 or so,
then inputed to the ballscrew..So with 2-1, ballscrew will see 60 to
80 lb-in

Wally

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "FJ62" <fj62@s...> wrote:
> That makes sense, but what I want to know is if the 30/40lb-in
torque is the
> required input at the leadscrew. i.e. with a 2:1 ratio do I need
15/20lb-in
> motors to get 30/40 at the screw or do I need 30/40 motors to get
60/80 at
> the screw?
> Thanks,
> Vortec62
>
>
> -----Original Message-----
> From: cnc_4_me [mailto:cnc4me@g...]
> Sent: Friday, February 04, 2005 6:28 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Re: Is this motor workable?
>
>
>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "FJ62" <fj62@s...> wrote:
> >
> > Are these numbers for a 1:1 ratio?
> >
> >
> > >Well many bridgeport retrofits are using 30lb-in or so servos for
> x
> > >and y and 40lb-in or so on the knee...But there is a lot of
> confusion
> > >on this spec as to if it is continuous or not...
> >
> > >Wally
>
>
> Most people use a 2-1 or 2.5-1 ratio....Depends on your servo
> rpm...You want to use most of the servos rpm range to get the most
> power out of it...
>
> Wally