Re: Subject: Why not use threaded rod leadscrews?

Stephan

Sounds interesting - I do have an old Myford lathe, about 7x20

Tell me more!

-Paul

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Stephan Kotze <skotze@r...>
wrote:

>
>
> >
> > Message: 4
> > Date: Thu, 10 Feb 2005 13:29:08 -0000
> > From: "Paul" <paul3507@b...>
> > Subject: Why not use threaded rod leadscrews?
> >
> >
> > Stainless threaded rod is cheaply available in 1m (39in) lengths.
> > I know the V thread profile is not square, not ideal for loads,

not

> > ideal friction wise, greater wear/backlash problems, not so
> > linear.......blah, blah
> >
> > BUT I can save a *huge* amount of money on a 1mx1m wood router

(3ft

> > 6in x 3ft 6in). I've been quoted over £100 ($180) for a new 1

meter

> > leadscrew which I think is OTT.
> >
> > Also is there a cost-effective source for rack and pinions? All

the

> > large 8ftx4ft pro routers use rack and pinions.
> >
> > -Paul
> >
> >
> Indeed, but take it one step further and make your own threaded

roller

> screws. In one of the groups (not sure I subscribe to about 45)

there is a

> suggestion on how to make these
>
> I include this link for inspiration; SKF also sells them
>

http://www.exlar.com/products/linear/roller_screws/roller_screw_oview
.html

>
> I have also draw up my own design which I will build as soon as my

Lathe is

> finished being converted to CNC
>
> Stephan
>
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2005/02/10