Re: Ballscrew machining

Thanks for all the great advice. I have plenty of things to look out
for now and it should work out especially as there is a huge
difference between the machined and unmachined cost of the ballscrew.

john

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "carbonsteelsam"
<corryharper@...> wrote:

>
> Also, with regards to the 3-jaw & sleeve approach: bore a brass
> sleeve to the proper ID and MARK the sleeve position to correspond
> to the #1 jaw. Then you can take it out, slit it, slip it over the
> screw & reposition it to line up with the #1 jaw again. Most 3-jaw
> chucks have runout and if you were to reposition the sleeve wrong
> you could actually double the run-out of the work.
>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, NEVILLE WEBSTER
> <nevillewebster@> wrote:
> >
> > sound advice Steve,
> >
> > take a cut and don't let tool dwell, use a power feed if

possible.

> Machinist often make this mistake and don't get the best out of
> cutting tools.
> >
> > Neville
> >
> >
> > ----- Original Message ----
> > From: Steve Blackmore <steve@>
> > To: CAD_CAM_EDM_DRO@yahoogroups.com
> > Sent: Sunday, 13 April, 2008 12:47:08 AM
> > Subject: Re: [CAD_CAM_EDM_DRO] Ballscrew machining
> >
> > On Sat, 12 Apr 2008 15:22:47 -0700, you wrote:
> >
> > >Good advice but I recommend that you also not try to take an
> interupted cut because that will damage the carbide insert. I try

to

> under cut the hardened area of the outer surface in one cut
> >
> > Hi Dan - depends entirely on the insert and carbide grade. Correct
> > choice of insert and interrupted cuts aren't a problem.
> >
> > Steve Blackmore
> > --
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>