On Sunday 10 September 2017 13:08:20 andy pugh wrote: > On 10 September 2017 at 13:31, Gene Heskett <[email protected]> wrote: > > On Sunday 10 September 2017 07:43:01 andy pugh wrote: > >> On 10 September 2017 at 04:42, Gene Heskett <[email protected]> > > > > wrote: > >> And then the X is even stranger, as the screws and locknuts are at > >> right-angles to the clamping direction, and apparently use a system > >> of taper wedges. > > > > Humm. That almost needs a pix. > > https://photos.app.goo.gl/tWKixRru9gpucWa13 > > That is with the table slid further left than normal. You can see the > rear V way and the front flat way. > You can also see, on the operator side, one of the adjusting screws > and locknuts, and on the other side the slide-plate and the end of > whatever the screw/locknut adjusts. But there must be a wedge in > there, and a little pusher to squeeze the slide-plate down onto the > table.
I can see it, but can't visualize it. One of those cases where I'd have to take a tv camera zoom lens apart to see how it works and goes back together, and what I need to do to restore its normal operation. I have at times used an oil/chalk mixture as an abrasive to restore a fit, after it was jammed into a door frame at the courthouse by a reporter on the dead run. And that was after I had already put about $2250 in new stuff in it. I had a long, heart to heart talk with both the reporter and his dept manager about that. Fuji had to make some of the crushed stuff, and I got yelled at 2 or 3x a day for the nominally 10 days that took. Back to my problem as I just made some additional measurements. The 0.0001 dial, sitting on the back flat of the bed, finger on the rear of the saddle, can lift .0037" before the rear gib stops it! Worse yet, it only takes a <15 lb push on the bottom of the apron to lift it, pivoting on the front way so a 20 lb outward push on a tool tip would do it for sure. Moving the dial finger to the front of the saddle, and the straight up lift is stopped at about .0017" with at least 100 lbs of lift under it. This is with the saddle sitting free. Fixing the rear one will be easier because there is room for some brute force rigidity stuff, only 3 each, 3/8" bolts holding it to the bottom of the saddle. I used a bar of 1/2" alu there, knowing it had some clearance, but my money is that I'll see some wear marks when I take it off. That one I think I will use setscrews for adjusters as they can be accessed. IIRC the cable chain is attached to the headstock end bolt of those 3 bolts. A longer bolt is NBD. Fix that, measure to see where the next fix is needed, repeat till it works or is at least good enough for the girls I go with. Now see if I have a suitable piece of scrap cold roll... Thanks Andy, for the pix and the ear. Cheers, Gene Heskett -- "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> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
