Re: Re: Grizzly Mini Mill

Ron Ginger wrote:

> From: Ron Ginger <ginger@...>
>
> Jon Elson asked why I didnt think the Z would be easy to add a leadscrew.
> The problem is the head rides on a cast box section with the V on one face.
> The rack runs up the length of the V, but is mounted on the surface- there
> is no slot. If you tried to slot it to put a lead screw inside the box I
> think it would weaken it to much- the total travel is about 12". I suppose
> you could add a screw off to the side, but then it would have a couple and
> might tend to bind.

Done properly, with plenty of support for the ends of the screw, it probably
would do fine. The couple is not likely to bind the head slide, as it is ALREADY
being driven by a couple from the rack. This is pretty similar to the way
I did it on my Bridgeport. I put the screw absolutely as close to the quill
as I could, to reduce the moment arm. Hmmm, 12" of 'quill' travel - sounds
real nice!

Jon