Re: Z axis conversion

Hugh Currin wrote:

> Wally:
>
> I looked at Jon Elson's site and really like his solution. Clean

and

> compact. Thanks Jon. When I get around to doing Z I hope I

remember

> this and ask Jon for a lot more details.
>
> At 08:13 PM 11/27/00 +0000, you wrote:
> >On the other methode of using a bolt in the front of the quill to
> >move the quill up and down. The bolt loosens up because it was

never

> >designed to transfer power to the quill. I think the loosening is
> >because of the rocking motion on 1 little bolt causing it to

stretch.

>
> I wonder if it would help to separate two ballnuts some distance

apart

> on the screw and use a little beefier screw? This would tend to

guide

> the "quill screw" up and down without rocking. The two ballnuts

could

> be used for antibacklash. The screw would have to be that much

longer

> though. But maybe as much loosness comes from mountings to the

head?

>
> Ah, design is easy in my head, I can gloss over all those pesky
> details. :-)
>
> Hugh Currin
> Klamath Falls, OR

Wally K. replys

I do not think that 2 ballnuts will help.

It looks like there are only 2 choices if you do not want backlash.
Use the bolt on the front of the quill or use the Knee for Z axis.