On Tuesday 17 July 2012 14:51:38 Jon Elson did opine: > Gene Heskett wrote: > > The spindle has a gear shift and in high gear can make 2500 revs. > > Thats a hair over 40 rps, and the encoder doesn't appear to be > > suffering from skipped counts. > > Yes, you numbers seem OK. Well I am getting good results at 81 teeth, > you are > getting both loop instability and grinding of the Z axis when synched to > the spindle > with 39 teeth, is that right? I think the closed-loop spindle speed > control can maybe > be solved with filtering, but the Z axis grinding probably can't, as > putting any filter in > the spindle path could cause problems. I'm surprised a 2:1 change in > the spindle > resolution would make that much difference. Are you running the hal > encoder component in > the X1 mode or the X4 mode? > > > Is there a way to setup nfs that Just Works(TM)? This is all a > > private network, using host files. I _think_ all the usual suspects > > have been properly configured. > > I don't use NFS, just sftp, and it works fine and is pretty easy to move > files around between > machines. I have 5 machines I move files around to regularly. NFS may > not work so > well if the various computers are being booted and shut down a lot, > which is the > default here. > And I can never remember the ancient, arcane, and usually nearly two full lines of text of the command line that makes it work, I believe I have succeeded twice in damned near 14 years of running linux.
I studied the man page for nearly 2 hours trying to decode that obtuse SOB of a man page for sftp about 3 weeks ago, gave up and asked on the ubuntu list how to make nfs work. I had an answer that worked in half an hour, but since then all 3 machines have been rebooted at least twice, and nfs is DOA. Again, for the 5th or 6th time in 10 years, I've made it work about that many times, but its gone again in 30 minutes. I used to use samba for that stuff, but Tridge broke it about 3 years back, so its been about that long since I was able to use samba for this stuff. The nfs manpages, what there is of them, all talk about doing it in /etc/fstab, the authors of such drivel conveniently and completely oblivious to the fact that one miss-typed character in /etc/fstab, and the machine will not boot from anything but the install cd, where you have to mount the drive with etc on it, then use some damned editor (nano/pico?) you have only used 3 times under duress to fix it. If you can figure out what needs fixed... Not your fault at all Jon, but when you have your own private local network, with the same install from the same cd on all 4 machines (there's a lappy in this mix too) there is absolutely zero excuse for making it so damned difficult that its easier to get dressed, grab a usb stick and copy what you want to move to it, grab the stick, bring it 100' back down the hill and plug it in here, only to find the first thing you have to do is issue as root, a "chown -R gene:gene /media/keyname/" command because for some reason gene on shop, gene on lathe, and gene on coyote, while I am the default sudo enabled first user #1000 on all 4 boxes, still don't have perms to read the &^% files! What the heck is the diff, I own that file on all 4 machines! But after the chown, it works. So does mc, when nfs works, and that doesn't need the chown, it just works WHEN it works. So that is what I'll do right now in order to get the .hal and .ini files where they can be read by you folks to see where I screwed up. With good luck, half an hour maybe. But my luck hasn't been that good the last 36 hours. I just made a 2nd shaft extension for that ball screw, and the last step, cutting a thread for a 5/16" 18 tpi nylock nut for bearing adjustment, stripped the threads off the end section of because I can't get a 5/16 18 thread cut when there is a .177" thru hole for the differential screw access thru it lengthways. So I've gone scouting and have both 5/16 24, and 8mmx1.0mm nuts to try, which should give me another .020" of steel for wall thickness at the bottoms of the threads. Thanks for reading this far. Jon. 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) My web page: <http://coyoteden.dyndns-free.com:85/gene> is up! "I've seen, I SAY, I've seen better heads on a mug of beer" -- Senator Claghorn ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
