Re: [CAD_CAM_EDM_DRO] PWM input Servo Amp / Universal Stepper Controller

I like the idea of this, does anyone know how this could be done?
Nick

----- Original Message -----
From: <jess@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, April 30, 2004 8:36 AM
Subject: Re: [CAD_CAM_EDM_DRO] PWM input Servo Amp / Universal Stepper
Controller


> Ok I have a question.
>
> Someone posted a link to US Digital on another topic so I surfed over and
> found heaps of stuff about Encoders ie that can be fitted to various
shafts
> for motion data.
>
> Here is my question.
>
> Considering the cost of servo motors with encoders is quite astronomical,
> what about a stepper motor say in the hi torque 34 42 NEMA size with
encoder
> from US Digital to over come the problem when a stepper loses steps.
>
> But which controllers and drivers are compatible to accept encoder
> feedbackloop while driving a stepper?
>
> Regards Jess
>
>
>
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