On Tuesday 06 May 2014 11:28:17 andy pugh did opine: > On 5 May 2014 23:49, Steve Blackmore <[email protected]> wrote: > > MDF and just two bolts - no wonder it turns tapered :) Needs to be > > bolted down to something rigid enough to enable you to pull the twist > > out of the bed. > > This does, of course, go against all the standard tenets of lathe > design. Not unexpected for machines not manufactured with any > consideration of lathe design, perhaps. > > My Rivett sits on two inset ball-bearings at the headstock end and a > spherical washer at the tailstock end specifically to ensure that the > support stand could have no influence on the shape of the bed. > > In the case of Gene's lathe it seems quite possible that the head > simply isn't straight on the bed. It would be interesting to put a > long bar in the chuck and see if it is possible to move the headstock > about.
I have had 3 foot pieces of 3/4" solid cold roll in it, and have not been able to move it. Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS ------------------------------------------------------------------------------ Is your legacy SCM system holding you back? Join Perforce May 7 to find out: • 3 signs your SCM is hindering your productivity • Requirements for releasing software faster • Expert tips and advice for migrating your SCM now http://p.sf.net/sfu/perforce _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
