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jt
 
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Default lathe cross-slide backlash adjustment idea


"jim rozen" wrote in message
...
In article , "jt" says...

One very common way to do this is to make the long nut in two sections.
And then rig a means of adjusting the separation between the two.
For example, Hardinge pins one bronze cylindrical nut into
the casting, and threads another similar one in on top of it.

By turning the adjustable one, one can trim out the fixed lash
in the nut.


I thought of that, but wasn't sure there'd be enough room for another set of
threads; plus the nut fits inside a channel under the slide which means it
may be limitedto turning in 90 degree steps. I also thought of two nut
sections, and a set of four teeney-weeny screws running along the long axis
in the corners of the nuts, two to pull, two to push. Keeping it square
might be trouble.