Re: [CAD_CAM_EDM_DRO] Re: Ballscrew question

Do you guru's think I could use the 5/8ths screw with 470 oz stepper motors
??
Or do I really need the 3/4" ??
My main task will be cutting 1/16th deep channels in copper ..
total area is about 3" square'ish..

----- Original Message -----
From: "industrialhobbies" <admin@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Wednesday, February 25, 2004 10:41 PM
Subject: [CAD_CAM_EDM_DRO] Re: Ballscrew question


> I have made preloaded nuts before and it's not overly difficult, the
> problem is, by the time you add up 2 standard nuts, wipers, and some
> special spring your 3/4 of the way to a factory preload. For the
> extra $20 it's easier to buy the nut ready made.
>
> Thanks
> Aaron Moss
> www.IndustrialHobbies.com
>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Douglas Pollard"
> <dougpol1@o...> wrote:
> > This is probably nuts but I would like to try it. Suppose you
> butted one end
> > of a ball nut against a shoulder and squeezed it lengthwise by
> clamping in
> > some fashion could you change the lead enough to take out a couple
> thou. of
> > backlash? Don't everyone email me that I am Dumb I already know
> that.
> > Doug
> > y
> > ----- Original Message -----
> > From: "yodawill2000" <chue2k@c...>
> > To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> > Sent: Wednesday, February 25, 2004 3:12 PM
> > Subject: [CAD_CAM_EDM_DRO] Re: Ballscrew question
> >
> >
> > > C.S ..
> > > Do they have a website ??
> > > Or a # ??
> > > Thanks for the info ...
> > > if they are considerably less I'll go with the double nut setup .
> > >
> > > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "C.S. Mo" <cs@v...> wrote:
> > > > Rockford Ballscrew offers 5/8" rolled ballscrews for
> significantly
> > > less.
> > > > And, they will machine the ends for $60/end or anneal the ends
> for
> > > $10/end.
> > > >
> > > > I initially went with a single nut with oversized ball bearings
> on
> > > my
> > > > quill assembly but found that I got 0.0015-0.002" backlash.
> Going
> > > to a
> > > > dual nut pre-loaded assembly reduced that to about 0.0002-5".
> > > >
> > > > --C.S.
> > > >
> > > > >Just to clarify Ray ..
> > > > >Thats with the single nut assy ??
> > > > >The Thompson rig is exactly what I was looking at ..
> > > > >Decent pricing over at homeshopcnc ..
> > > > >I'll just need to figure out how to turn the ends down ..
> > > > >My lathe has only a 1/2" through hole ... Dooh !! :)
> > > > >Thanks
> > > > >>
> > > > >> I get about 0.002 lash with the 5/8 thompson rolled screws.
> > > > >>
> > > > >> Ray
> > >
> > >
> > >
> > >
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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
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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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