Re: can you help identify a stepper motor?

Alan,

Thanks, Wow that was a fast response!!!!

As I am brand new in this aspect of electronics, what is the
difference in a stepper motor and DC servo motors????

What is an encoder?

Can I hook up DC power without damage to the encoders?

Again Thanks,

phil


--- In CAD_CAM_EDM_DRO@egroups.com, Alan Marconett KM6VV <KM6VV@a...>
wrote:

> Phil,
>
> I think you have DC servo motors with encoders!
>
> Alan KM6VV
>
>
> Phil Jaster wrote:
> >
> > Can anybody help identify the following?
> >
> > I have two stepper motors pulled from an unknown brand of a

plotter

> > printer, this printer was huge, capable of at least 30"
> > paper . I have searched the internet and found the company of one

of

> > them but recieved NO reply from my email.....
> >
> > Both motors are 2.+ inches in diameter and vary in length but are

both

> > approx. 3 3/4 inches. [NEMA 23]?????
> >
> > They both are connected with 10 wire ribbon harness PLUS have what
> > must be negative and positive DC connectors <both have a very

obvious

> > "+" sign by the factory red screw holding the wire connector lug

onto

> > the motor.>
> >
> > The motors mount on the shaft end of the motor which have pressed

on

> > fine toothed gears, of two different diameters.
> >
> > Both motors were made or sold in Chatsworth, CA 91311.
> >
> > One is marked Universal Magnetics, Inc. an "NMB company" It has

the

> > following identifing numbers: 10211-301-000 on the
> > first line and ME2102617 in one space and 8523 following that.
> >
> > My other motor is labeled on the BODY with: Hathaway p/n 7925109

REV

> > B003, a customer p/n which is seven numbers or
> > letters long but unreadable... then REV 4A and a small + sign near

the

> > RED painted wire connector lug on the motor.
> >
> > On its round cap covering the circuit board for the servo stuff it

is

> > labeled: Computer Optical Products, Inc and again the
> > address of Chatsworth, CA 91311.
> >
> > Can anybody provide even approximent values for these motors????

Can

> > they be powered by the DC connectors without harming the stepper
> > circuits??? How can I identify which wires in the ribbon are

"used"

> > for the servo information.
> >
> > I would like to be able to use these for x axis on my TAIG lathe

or

> > maybe for driving a home built plotter/engraver.
> >
> > would these be "good" for a first time project in stepper motor

work

> > or should i go with something less exotic like steppers from a dot
> > matrix printer?????
> >
> > thanks in advance,
> >
> > phil jaster
> >
> > Welcome to CAD_CAM_EDM_DRO@e...,an unmoderated list for the

discussion of shop built systems, for CAD, CAM, EDM, and DRO.

> >
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