Re: Ballscrew installation issues

>
> I purchased the same ballscrew that McMaster sells, but directly from
> Thompson, because I wanted the higher accuracy class. Thompson says they
> are .631 ball circle x .200 pitch. I think the listing in the McMaster-Carr
> catalog must be an approximation (why??). By the way, the higher accuracy
> screws are only 50% premium for .001"/ft vs. the standard class .004"/ft.
>

Well I guess I should call Thompson tomorrow and see about that - and
the lefthand threads.

Chris

--
Christopher C. Stratton, stratton@...
Instrument Maker, Horn Player & Engineer
30 Griswold Street, Cambridge, MA 02138
http://www.mdc.net/~stratton
(617) 492-3358 home/shop