Many of these commercial machines have double ball nuts and a linkage between so that they can be rotated against each other to take up wear.
> On Sun, 4 Jan 2026 at 12:59, Stuart Stevenson <[email protected]> wrote: >> >> I don't know how much preload is considered 'tiny'. The 5 axis Cinci X >> travel is 120". The preload stretch is supposed to be .007" measured >> with >> an indicator on a mag base on the casting beside the screw while >> tightening >> the nuts. > > That sounds very tiny on that length. It pretty much falls off the > bottom of this bolt-stretch calculator. > https://www.engineersedge.com/hardware/bolt_elongation_formula_15777.htm > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > â George Fitch, Atlanta Constitution Newspaper, 1912 > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
