RE: [CAD_CAM_EDM_DRO] 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. 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@...]
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