Re: [CAD_CAM_EDM_DRO] Backlash on Harbor Freight Mini Mill

I know that replacing the screws and nuts with ballscrews and ballnuts
(2 on each screw for zero backlash) is a lot of work. I/we've done this
to several machines. However, the result is far, far superior to using
an acme screw.

If you plan on keeping this machine for a while, I'd replace the
screws. As an added bonus, you can run smaller motors because screws
take a lot less power or you can run the same motors but run them
faster.

Kim

On Fri, 2003-11-14 at 10:27, ccq@... wrote:
> On Fri Nov 14 08:22:37 2003 mmeyers1111 wrote:
>
> >In the Photos section of this group there is a concept drawing of a
> >screw-nut modification to reduce backlash. It is photo 17 of 63.
> >
> >"Photos / No backlash nut concept for mini mills / bigger textno
> >backlash nut.jpg"
> >
> >It was created by TATTOOS4UNME on 28-Sep-2002
> >
> >1) Has anybody tried this approach to reduce backlash on those
> >mills? How well did it work?
> >
> >2) Does anybody have any better inexpensive method to reduce
> >backlash? I'd rather not replace everything with ballscrews and
> >ballnuts or similar more expensive approaches as I don't use it
> >enough to justify spending a lot of cash.
> >
> >Mike
>
> Howdy Mike;
>
> You might want to look at the replacement screws and dials they have at:
>
> http://www.micromark.com/
>
> I'm not sure that they have substantially less backlash, but they're supposed to
> be a lot easier to use than the std ones.
>
> Bill
>
>
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