On Tue, 20 May 2003, dds6263 wrote:

> I would like to see someone tackle the problem of installing a driven
> lead screw to the z axis with disengaging half nuts (just like on the
> mini lathe). Then the mini mill could be engaged for a positive zero
> backlash drive or disengaged to retain the drill press manual feed
> which I use a lot. Even the existing fine feed could be left in tact.
> And looking at the prices listed at LMS I found you could buy all of
> the parts for about a hundred bucks. Really doesn't look like much of
> a challenge, if you got the time.

What would be really cool is a way to combine the coarse feed and the fine
feed on the same lever. Just push it in or pull it out to switch.

> Here is a tip you can increase your "Y" axis travel to 4 ½ inches by
> grinding the bed casting where the lead screw nut contacts at the
> front, and by removing the 3 washers under the 3 bolts that connect
> the column to the base. And, by replacing the existing rack with the
> old style which is much longer you can increase the distance from the
> table to the spindle to 13 1/8" with a 10" stroke

I can't remember if I posted this here but check out my Z-axis gas spring
lift + travel extension:

http://www.bluegreenlabs.com

C|