Re: [CAD_CAM_EDM_DRO] Litton JDH-2250-CG-1C Servo Motors and fitted with 721B1-508-315-5KM Encoders (L

Hi, take a look at my site, some info on the motors i have that are simular.
www.genapro.com in the cnc section.
if thats no help we can chat offline i might be able to help. cul brian f.

----- Original Message -----
From: "Mic Arthur" <mica@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, March 17, 2006 12:06 PM
Subject: Re: [CAD_CAM_EDM_DRO] Litton JDH-2250-CG-1C Servo Motors and fitted
with 721B1-508-315-5KM Encoders (L


> From a page I found at http://www.futurebots.com/parts.htm is the
> closest I've found for any sort of data on these motors.
> "Litton Clifton Precision DC motor JDTH-2250-GB-1C, date 1990, Nema size
> 23 DC brush motors
> with4 mount screw holes on front. Peak torque 125 oz inch, 2 wires, 12
> volts, 2.3 amps, 4700 rpms,
> has a Encoder shaft. Great for CNC, Robotics, size 3 inch long x 2 inch
> dia x 1/4 inch shaft."
>
> These Litton/Clifton Precision nema size 23 brushed DC motors with
encoders
> can be found in many printers and plotters from the 70's to 90's.
> I have DH-2250-C-1 (1977, 24Volt), DH-2250-F-1 (1978, voltage unknown,
> judging by current draw they are 36V i think),
> and DH-2250-AU-1 (1984, again voltage unknown).
> I'll be stuffed if I can find any data on them though.
> I'm going to try them on my Gecko340's in a couple of weeks to see how
> they go?
> Mic.
>
> pljffrsn wrote:
> > Hi,
> >
> > I have the above Servo Motors but no information on how to drive them
> > etc. I am new to CNC and therefore am creating my 'information chain'.
> > The units are 6 wire with 2 wires going to brush holders on the side of
> > the motor body (+ve and -ve). I am assuming that these are DC motors.
> > They have come from an old ZETA 9 Plotter.
> >
> > Can any one enlighten me on Servo /Encoder systems and are these good
> > to have type motors or should I just go and buy some steppers to get
> > going.
> >
> > All help greatfully received.
> >
> >
> >
> >
> >
> >
> >
> >
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> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a
sister site to the CCED group, as many of the same members are there, for OT
subjects, that are not allowed on the CCED list.
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> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
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