On Friday 09 May 2014 05:34:11 andy pugh did opine And Gene did reply: > On 8 May 2014 22:35, Gene Heskett <[email protected]> wrote: > > FWIW, the Union Tool Co. level says the bed angle, high in front > > because the v-way is sticking up, is sitting at 175.5 degrees on > > both ends of the bed, so if it is warped, its not enough that I can > > actually measure. I thought it had a vernier scale, but I guess > > not. > > A twisted bed will probably only have a second-order effect on > diameter anyway. As I am visualising it the effect will be to alter > the tool height. This could lead to taper either way or waisting > depending on the starting height. > > I can't help wondering if the axis of the spindle simply doesn't match > the axis of the V in the headstock. If there is a V in the headstock.
There is, looks like an excellent fit. And a 3 foot 5/8" rod out the back of the spindle cannot move it. > If there isn't, or if it doesn't actually fit the V on the bed > closely, then perhaps the head just isn't bolted on straight. I've air hosed those contact areas, and looked, its sitting solid on both faces of the V at both ends of its housing, but to check the bolts for tight will require dismounting the Z screw as the (10mm) socket head cap screws only clear the Z screw by maybe 75 thou. 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
