Re: [CAD_CAM_EDM_DRO] Re: Series II big stepper details and step mode

Series I and Series II only refer to the size of the mill.
Series I mills have a travel of 17" on X, 11" on Y, 5" on
the quill and 16" on the knee. Series II machines have a
travel of 30" on X, 15" on Y, 5" on the quill and 16" on the
knee.
Your friends machine could very well have servos. Bridgeport
used steppers up to BOSS 6. BOSS 7 and up use servos. If his
X motor is running hot and going out, it is probably a servo
machine.
Darrell

----- Original Message -----
From: <cnc4me@...>
To: <CAD_CAM_EDM_DRO@egroups.com>
Sent: Monday, October 09, 2000 9:07 AM
Subject: [CAD_CAM_EDM_DRO] Re: Series II big stepper details
and step mode


> I was suprised to read the bridgeport series I and II used
steppers.
> A friend of mine has both machines and he thought they
were servos.
> He has the orignal bridgport configuration i think.
>
> He also told me his X axis motor on the series II runs hot
and goes
> out every year or so.
>
> Does anyone know what stepper switching mode is used in
these mills.
> Like full, half step, or microstep.
>
> --- In CAD_CAM_EDM_DRO@egroups.com, "Darrell"
<dgehlsen@e...> wrote:
> > These are 8 wire motors that Bridgeport has jumped to
run as
> > 6 wire in unipolar mode. You can run these in bipolar by
> > using 1 and 6 with 2 and 8 as the simplest wiring or you
can
> > jump 1 to 5, 3 to 6, 4 to 8 and 2 to seven for parallel
> > bipolar or you can leave the jumpers on 5 to 6 and 7 to
8,
> > take the white/blue and white/yellow wires off and run
> > series connected bipolar.
> > There has been lots of discussion on the benefits of
each
> > mode.
> > Darrell
> >
> > ----- Original Message -----
> > From: "Lee & Chris studley" <indigo_red@u...>
> > To: <CAD_CAM_EDM_DRO@egroups.com>
> > Sent: Saturday, October 07, 2000 8:40 PM
> > Subject: [CAD_CAM_EDM_DRO] Series II big stepper details
&
> > picts so far...
> >
> >
> > > Tim,
> > > Here's some detailed pictures of the steppers on the
> > SERIES II mills:
> > >
> > > http://www.users.qwest.net/~indigo_red/files/
> > >
> > > pic5A.jpg and stepper1.jpg are the connections and
ohms
> > between coils.
> > > At 1st glance these appear to be 6wire wired, but
could be
> > rewired as
> > > bipolar...
> > >
> > > What do you think? If anyone has comments please share
> > them.
> > > -Lee
> > >
> > >
> > > http://www.users.qwest.net/~indigo_red/files/
> > >
> > >
> > >
> > > At 09:23 PM 10/7/00 -0600, you wrote:
> > > >It still is not shipped yet. I talked to the plant
> > manager at the company I
> > > >bought it from on Monday. He was going to give the
truck
> > line another call
> > > >to see where they are at. Lee used the same line
(CME) to
> > ship his and it
> > > >took 2 months for them to get around to it. The rate
is
> > tremendous and
> > > >according to Lee they did a good job, but the service
> > stinks.
> > > >
> > > >I will certainly keep everyone posted.
> > > >
> > > >Tim
> > > >[Denver, CO]
> > > >
> > > >> Tim: What is the status of your heavy metal ebay
> > purchase? Got it home
> > > >> yet? Keep us posted.
> > > >> Carey
> > > >
> > > >
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> Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list
for the discussion of shop built systems, for CAD, CAM, EDM,
and DRO.
>
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