Re: [CAD_CAM_EDM_DRO] Re: Motor/Leadscrew Couplers

Guys,
You can find the Oldham couplings at www.ruland.com in every size.

Marv Frankel
Los Angeles

----- Original Message -----
From: "Tony Jeffree" <tony@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Saturday, November 23, 2002 1:24 AM
Subject: [CAD_CAM_EDM_DRO] Re: Motor/Leadscrew Couplers


> "Oldham" couplings tend to be cheaper & work just fine. Even possible
> to make your own.
>
> Regards,
> Tony
>
>
> --- In CAD_CAM_EDM_DRO@y..., Marv Frankel <dcdziner@p...> wrote:
> > Guys,
> > The coupling pictured can be ordered from
> www.mcmaster.com , and is
> > called a Helical Beam Coupling. There are other flex couplings in
> their
> > catalog that may work as well.
> >
> > Marv Frankel
> > Los Angeles
> >
> > ----- Original Message -----
> > From: "George Erhart" <erhart01@e...>
> > To: <CAD_CAM_EDM_DRO@y...>
> > Sent: Friday, November 22, 2002 4:58 PM
> > Subject: Re: [CAD_CAM_EDM_DRO] Motor/Leadscrew Couplers
> >
> >
> > > Check out the connector in the last photo on this E-bay ad:
> (scroll to the
> > > bottom!)
> > >
> > > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1780808054
> > >
> > > This allows for the misalignment with a minimum of spring to
> > > the connection. I have no clue where to order it from, but
> > > I just ordered three of these units to put the motors on a
> sherline mill.
> > >
> > > George
> > >
> > > ----- Original Message -----
> > > From: "Kory Hamzeh" <kory@a...>
> > > To: <CAD_CAM_EDM_DRO@y...>
> > > Sent: Friday, November 22, 2002 6:13 PM
> > > Subject: [CAD_CAM_EDM_DRO] Motor/Leadscrew Couplers
> > >
> > >
> > > >
> > > > I'm kind of a newbie at this and I'm trying to interface the
> Frog to my
> > > > lathe. The end of the leadscrew on my lathe has an external M8
> x 1.25
> > > > thread, about 8mm long. The stepper motor is a nema 23 with a
> 0.250"
> > > > diameter shaft. I was wondering if the group members had
> suggestions on
> > a
> > > > good coupler design. I machined a "hard" coupler out of aluminum
> > threaded
> > > > one side to screw on the leadscrew and reamed on the other side
> for the
> > > > shaft. Each side has a couple of set screws to hold it in
> place. I was
> > > told
> > > > that you don't want to use a hard coupler and I kind of believe
> it --
> > any
> > > > slight misalignment of the motor causes the friction to go
> through the
> > > roof.
> > > >
> > > > Any suggestion would be greatly appreciated!
> > > >
> > > > Thanks,
> > > > Kory
> > > >
> > > >
> > > >
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> > > OFF Topic POSTS: General Machining
> > > If you wish to post on unlimited OT subjects goto:
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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.
> > >
> > > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY
> POSTING THEM.
> > DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
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> > > List Mom
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>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if
you have trouble.
> http://www.metalworking.com/news_servers.html
>
> 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.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>