Re: Ballscrew machining

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]
>