On Friday 16 March 2018 22:50:20 Jon Elson wrote: > One of my users says he has run into an issue with Axis, > that he can only enter a value up to 99 when entering the > feedrate in MDI mode. This seems like this might be a big > issue for metric users, I've never run into it as my machine > tops out at 72 IPM. > > After fixing some other things in the .ini file, he can jog > at several hundred IPM. > > Any comments? > > Thanks, > > Jon
After swapping out a bob for one w/o any opto's in the output paths, my G0704 can now move all 3 main axises at 120 to 140 ipm. With the old bob, 65 was tops. And just today because I needed that POS 4" rotary table to be as accurate as any India made table can be, I was able to spin it up to F3240 degrees/minute for a +- 3600 degrees motion without any hints of a stall. F3600 did get me a stall. I also found the M542-T needed wider step pulses than the older 2M542's did. Almost double in fact, 3500 ns. No response at 2500, where the 2M542 seems happy at 1500ns step widths This table has a bull gear with at least 3 or 4 thou of eccentricity, and a similar amount of runout in the worm. So its impossible to get rid of the backlash, which can range from zero and dragging, up to at least 2 degrees depending of where the worm and bull are in their rotation. I wish I could find a good recipe for a grinding mud to wear the high spots down that wouldn't also grind up its single bearing. Unforch, the bull is brass, so all the wear would probably be on the worm, when it probably needs about equal material removal to actually do any great improvement. Need a better table, but bring sheckles in large piles. > > ---------------------------------------------------------------------- >-------- Check out the vibrant tech community on one of the world's > most engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers -- 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-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
