Re: [CAD_CAM_EDM_DRO] R-8 to NEMA-23 Adapter!

I still use the motor holder even now that I have a largish-solid Lathe so
that I'm not crushing the motor housings in the 3-jaw chuck. Additionally,
NEMA-23 only defines the centering of the shaft in the face plate, not the
body.
Yes, that's RUSH, he wrote that one instead of Alex, who knew?
-Kenneth
(Unit 3's in trouble and it's scared out of its wits) -Geddy Lee

----- Original Message -----
From: "Alan Marconett KM6VV" <KM6VV@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Sunday, April 22, 2001 9:52 PM
Subject: Re: [CAD_CAM_EDM_DRO] R-8 to NEMA-23 Adapter!


> Hi Kenneth,
>
> I liked the NEMA-23 holder! I didn't need to grind a motor shaft, but I
> do mill flats on them in my Sherline!
>
> I don't think your pen holder will fit on my little Sherline! but I get
> the idea. gotta think about it!
>
> Thanks for posting pix!
>
> Alan KM6VV
> Geddy Lee, Is that a Rush?
>
>
> Kenneth Maxon wrote:
> >
> > Hey guy's...
> >
> > Don't know if this will strike any interest or not, but these
following
> > two picture links depict an R-8 to NEMA-23 adapter I made some years
back.
> > Honest, no kidding! Okay, okay, that deserves a bit of explanation. I
> > needed to grind down the shafts of some NEMA-23 stepper motors and at
the
> > time, only had a milling machine. What I did was make an adapter to
hold
> > the motor up in the spindle so that I could spin it at the mill's
slowest
> > speed (50 Rpm's) while using a high speed air grinder held in the vice
on
> > the table. Not exactly a normal use of a mill, but it works wonders and
> > I've done it many times since.
> >
> > Anywho, I've been working on getting more of these projects onto my
web
> > site since I've done lot's more than are currently on there and thought
that
> > several people on the list might get ideas from seeing these.
> >
> > http://www.users.uswest.net/~kmaxon/page/m_soft/mot_hld1.jpg
> >
> > http://www.users.uswest.net/~kmaxon/page/m_soft/mot_hld2.jpg
> >
> > I also put up a few pictures of the attachment I used to use when
holding a
> > felt tip pen in the mill so as not to crush the tip when drawing PCB
traces.
> >
> > -Kenneth
> > (Unit 3's in trouble and it's scared out of its wits) -Geddy Lee
> >
>
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