On Friday 20 November 2015 07:30:49 andy pugh wrote: > On 20 November 2015 at 11:50, Gene Heskett <ghesk...@wdtv.com> wrote: > > Chuck strikes would seem to be so "tool mounted" a variable as to be > > unsolvable. > > I don't see why. The same area of the saddle is likely to be at risk > of hitting the chuck jaws in must setups. > I am not trying to protect lathe tools or the chuck jaws. > > One concern with any such idea would be that swarf might trip the > sensor. Some super-clever frequency analysis might be needed (3x or 4x > spindle speed) to tell the difference.
Vibration detection? On mine, I have probably worn off an eighth of an inch off the nose of the compound feed since it usually hangs out in front of the saddle. Just one of the reasons I have considered removing it and replacing it with a block of steel that holds the QC base about 1/2" out and to the right just to put the cutting forces back on top of the saddle as opposed to hanging off the left of it enough to lift the right edge against the gib strip. When the machine gets that small, the saddle footprint on the bed gets too darned narrow, and cutting forces can make it do things the screw didn't tell it to. That narrow a saddle would only be at home wearing a lantern post tool holder, which would put the cutting forces closer to the center of its footprint on the bed. I tried to make one, but the compound is too high, no room for the big woodruff key and dished washer base. Getting rid of the compound and replacing it with a thinner block would solve that problem too. But ATM I'm trying to finish those 3 blanket chests, and seem to have miss-laid my round tuit to take a break from that and do that sort of thing. I spent yesterday trying to get enough filler into and sanded back flat, a nearly 23.5" x 41" lid panel. I left in laying on the saw table last night, sanded to 320 grit. No clue how much it has warped overnight just laying there. I know it will, so the next step is getting the breadboard ends fitted, which will control that quite a bit, hopefully w/o skinning it up so my moving it around doesn't show in the finish. And this morning I am having trouble walking again, that pinched nerve in my back seems to be making me think I have a cramp in the calf of my left leg. I wrapped a heating pad around it about 5ish & managed to get a bit more sleep though. Loaded up with vitamin B12, which is reported to help counteract the metformin's tendency to flush it out, the shortage of which causes leg cramps. Sigh. I got 2 more saddle blocks in my back 2 weeks back, on the left side this time, but they aren't working. Getting old is not for wimps, but I seem to be turning into one way too fast. Heck, I still have stuff on my bucket list! 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> ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
