If this is any help, here is a link to a copy of our Sabre 750 Z axis ball screw layout, your machine looks identical to our machine.
https://app.box.com/s/tt0favgpkqrvd0e6uisglg0p6jutdoh4 Rick On 2/26/2016 9:00 AM, Forum Deswysen wrote: > Hello Andy, > > Thank you for this additional information. > > *Can someone** tell me if this nut **is adjustable ???* > > Some pictures of the problem: > > To have no more weight on the screw, the head of the machine is placed on > its transport support > > https://drive.google.com/open?id=0B5hmBjm5ot8NOS1CdldvSi1MbzQ > https://drive.google.com/open?id=0B5hmBjm5ot8NS0Q5VDBvY3pGVjA > https://drive.google.com/open?id=0B5hmBjm5ot8NSDhCTmpsWkk3aVU > > Best regards, > > Pierre > > 2016-02-26 10:32 GMT+01:00 andy pugh <bodge...@gmail.com>: > >> On 26 February 2016 at 06:02, Forum Deswysen <forum.deswy...@gmail.com> >> wrote: >>> Yes that's it. >> Don't ignore the possibility that the backlash/ slack might be in the >> ballscrew bearings. >> >> Depending on the style of the ball-nut, it might be possible to adjust >> the backlash. >> >> Isel make adjustable ball-nuts: >> http://www.techno-isel.com/lmc/Products/BmNuts.htm >> If you have them, then you just need to adjust them. >> >> Often the ball-nuts are a back-to-back pair with a spacer to set the >> backlash/preload. If yours is like this, perhaps the clamping screws >> have loosened. >> If the screws are still tight then you might be able to grind / lap >> the spacer to remove the backlash. >> >> If the ballnut/screw is a single piece then the options are >> replacement or rebuilding with oversized balls. If the slack varies >> with position the then wear is uneven, and oversized balls won't work. >> This Amazon seller lists balls in very small increments around the nominal >> size >> >> http://www.amazon.com/Ballscrew-Screw-Balls-0-1244-mm3-1597/dp/B0070I6824/ref=sr_1_19?ie=UTF8&qid=1456479041&sr=8-19&keywords=precision+balls+ballscrew >> There are videos on Youtube showing how to re-ball a ballnut. >> >> -- >> atp >> If you can't fix it, you don't own it. >> http://www.ifixit.com/Manifesto >> >> >> ------------------------------------------------------------------------------ >> Site24x7 APM Insight: Get Deep Visibility into Application Performance >> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month >> Monitor end-to-end web transactions and take corrective actions now >> Troubleshoot faster and improve end-user experience. Signup Now! >> http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > ------------------------------------------------------------------------------ > Site24x7 APM Insight: Get Deep Visibility into Application Performance > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > Monitor end-to-end web transactions and take corrective actions now > Troubleshoot faster and improve end-user experience. Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users -- Thanks Rick Lair Superior Roll & Turning LLC 399 East Center Street Petersburg MI, 49270 PH: 734-279-1831 FAX: 734-279-1166 www.superiorroll.com ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
