Re: Rong Fu 31 CNC Conversion Kit / Instructions / Help? :D

Turning down in the lathe is not bad. You will need a carbide tool.
The surface is pretty hard but once passed it it turns great.
Make sure you use double angular conatact bearings to remove any
slop at one end of the ballscrew. The other end bearing is then not
important.
I did buy them direct from Nook. You can get the Thompson Saginaw
ballscrews and nuts as well. They are good products also.
Like I mentioned I choose Nook because they had the left hand
ballscrew that I ended up really not needing. I have no plans on
putting the handles on the mill at all.

Gary
--- In CAD_CAM_EDM_DRO@yahoogroups.com, Darren Lucke
<oneluckeboy@y...> wrote:

>
> Oh yeah.... being that these are rolled screws... I
> would assume chucking up in a lathe and turning for
> bearings as necessary is not a problem?
> D. Lucke
>
> --- Owen <owenis@t...> wrote:
>
> > Thanks Gary,
> > Did you buy them direct from nook? Or an online
> > store.
> > I've been toying with the z axis fine feed and, as
> > predicted, the tolerance
> > / back lash is horrible.
> >
> > So I need ball screws for the head.
> > Owen
> >
> >
> > -----Original Message-----
> > From: CAD_CAM_EDM_DRO@yahoogroups.com
> > [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf
> > Of cncgramps
> > Sent: Saturday, January 21, 2006 8:10 PM
> > To: CAD_CAM_EDM_DRO@yahoogroups.com
> > Subject: [CAD_CAM_EDM_DRO] Re: Rong Fu 31 CNC
> > Conversion Kit / Instructions
> > / Help? :D
> >
> >
> > I just looked it up and I paid $48.00 for a 48"
> > ballscrew and it
> > was $23.00 for each ballnut. They were a bit higher
> > than Saginaw
> > Thomson and they matched their price.
> > I bought from Nook because they had a left hand
> > ball screw. I
> > thought at the time I wanted to be able to use the
> > mill as a manual
> > mill and your Y axis on a manual mill needs to be
> > left hand if you
> > want it to work like any hand cranked milling
> > machine made.
> > I found out after a few minutes of running it as a
> > CNC I had no
> > desire to use it with hand wheels.
> > So I would say buy all right hand ballscrews and
> > nuts. Then you
> > would need the 6 foot section I think. That was not
> > that much more.
> >
> > Gary
> >
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Owen"
> > <owenis@t...> wrote:
> > >
> > > WOW Gary that's a great price.
> > >
> > > Did you buy the ground screw or the rolled? how
> > much were the ball
> > nuts? I
> > > paid more than that just for one selective fit
> > ball nut, like 400
> > bucks for
> > > the ground ball screw and nut.
> > > Where did you buy them from?
> > > Owen
> > > ----- Original Message -----
> > > From: "cncgramps" <cncgramps@y...>
> > >
> > > > I think I paid about $60.00 from Nook for enough
> > 5/8 ballscrew to
> > > > do all 3 axis.
> > > >
> > > > Gary
> > >
> >
> >
> >
> >
> >
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES:
> > http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> > Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
> >
> > Subscribe:
> > CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> > Unsubscribe:
> > CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> > List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com,
> > wanliker@a...,
> > timg@k...
> > Moderator: pentam@c... indigo_red@q...
> > davemucha@j...
> > [Moderators]
> > URL to this group:
> > http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> >
> > 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
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES:
> > http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> > Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
> >
> > Subscribe:
> > CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> > Unsubscribe:
> > CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> > List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com,
> > wanliker@a..., timg@k...
> > Moderator: pentam@c... indigo_red@q...
> > davemucha@j... [Moderators]
> > URL to this group:
> > http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> >
> > 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
> >
> >
> > Yahoo! Groups Links
> >
> >
> > CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> >
> >
> >
> >
> >
>
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
>