Re: RF-45 Retrofit

Mike,
I am using NSK screws that I bought used from Bill Griffin, who is
here on the list and has a web site www.grifftec.com. I am very happy
with them, if your interested talk to Bill. I'll let him tell you
what he has on hand and what the prices are, I know the ones I bought
were considerably less than the price of new screws.
You might also look at the suppliers such a MSC, they sell screws
quite a bit less than the finished screws like Nook etc, but the ends
are not machined, it's just a lenght of screw, so you would have to
work the ends yourself or send it out to be done. Also the prices in
the catalog are seperate for the screw and the nuts.
Terry May

--- In CAD_CAM_EDM_DRO@egroups.com, Mike Gann <mikegann@h...> wrote:
> Could you give me some details on where and how much the ball screws
> were?
>
> I have an old "Hybrid Mill". It has a Rockwell R8 Head mounted on
an old
> Howard & Rogers base. It is a knee mill. The X travel is 20" and
the
> Y travel is 6". The Quill has 2.5" travel and the Knee has 12"
travel.
>
> I called Rockford and Nook to get prices and they were pretty high.
> It would cost almost as much for the Ball screws and nuts as I paid
for
> the whole machine.
>
> Am I missing something? If this was a Bridgeport retrofit I might
not
> hesitate as much. But this is a pretty old machine. I don't want to
> guess
> how old the base is. But I do want to get a CNC machine going.
>
> I don't mind spending the money on Servos and Serevo amps, etc. ,
as I
> can
> keep these and apply them to a future (bigger, newer, etc...)
machine.
> But
> the ball screws would stay with the old machine.
>
> Any advice or help would be appreciated.
>
> Thanks
>
> Mike Gann
>
> ptengin@a... wrote:
> >
> > In a message dated 08/18/2000 11:23:16 AM Hawaiian Standard Time,
> > tmay@u... writes:
> >
> > << I started turning the ballscrews they way I told you about
with
> > the tailstock as a steady rest, seems to be working OK, I'll
send you
> > some pictures.
> >
> > Terry >>
> > Terry,
> >
> > Very cool. I'm sure everybody could use some neat pictures to
> > reinvigorate their own efforts.....
> >
> > Peter
> > THRD, Inc.
> >
> >
> >
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