开云体育

On Sun, Mar 20, 2022 at 12:14 PM, Mark Kimball wrote:

I bought the spring from McMaster-Carr, P/N 9434K72.? It compresses down to? .13" wide so the gap between the nuts has to be a little more than that.

I think the spring you used might have been a 9434K113 which has a 0.39" I.D. to go over the 10MM (0.394") shaft. The 9434K72 only has a 0.296" I.D..

Hi Mark,
I have been following this interesting discussion on cross slide travel mods and anti backlash mods. I have had my go at it a few years back and am happy with what I have so I am just following along with interest.
These days I am focusing on a couple of 24 volt DC motor mods for my little Unimat DB200 lathes. (Variable Speed Control is the goal. I am having fun while learning new skills.)?
Dick

On Wed, Mar 30, 2022 at 06:59 AM, paul mcclintic wrote:

I think the spring you used might have been a 9434K113 which has a 0.39" I.D. to go over the 10MM (0.394") shaft. The 9434K72 only has a 0.296" I.D..

You're right!? I'd forgotten that I ordered the wrong size.? I found one with the right dimensions at a local hardware store.? Fortunately the spring dimensions aren't all that critical.

Apologies for the misinformation, and thanks for the correction.

-Mark

On Wed, Mar 30, 2022 at 09:24 AM, Mark Kimball wrote:

Fortunately the spring dimensions aren't all that critical.

If there's a terrible shop mishap and the 'safety' spring gets separated from your chuck key, it might be about the right size to fit over the leadscrew.