Greetings all; Just came in from wireing up and configuring the x home, the last of the 4 home circuits.
One more relay to hook up, to turn off all machine power until motion is enabled. And I'll need to automatically unhome everything when its disabled since these 2m542's power up at the zeroeth microstep. I'm planning on using an edge module to get that signal. And since I've been told the home switches are sampled at the servo-thread rate, I see no technical advantage to an additional 1 ms debounce, so all switches go direct to joint.n.home-sw-in. And since the A/B/C rotary axis is not mounted and plugged in until actually needed, how can I exclude it from all but a manual axis mouse button push to home it, _and_ so that its not being homed is ignored by LCNC. I just checked the spindle direction before I came in, and today its running cw again. Its been running ccw for a week, without touching a thing. Stupid damned Chinese vfd they refuse to furnish english docs for. Anybody buying one of these 60x0's from anybody, negotiate $400 off & let them keep the whole driver box, its 40+ lbs of crap. Only a 24 volt stepper that run at 14 volts with the 4th axis plugged in, the drivers are tb6560's, run w/in their limits might be ok but 2m542's on a 28 volt supply can move it faster. Get the cables if you can though, they're marked. Not all wired alike, so that will need sorted. You'll also need bigger cable chain by the time you get switch wireing and all that contained, plus the air hose for the mister. I see theres now a mister with 2 adjustable valves, which might make a lean mister w/o 16 feet of .029 capillary tubeing hanging on the back of the gantry for flow restriction. It wouldn't self prime, so the coke bottle is pressurized. Nozzle design obviously has a lot to do with that. Might take some experimenting with misters from various sources. With and w/o pressure in the fluid bottle. If someone finds that magic combo, plz share, this one slobbers a bit at useable pressures. A new vfd similar to what I used on the Sheldon should be here by the end of next week. Its working well on the Sheldon including a reverse quick quick enough to make the drive belts yelp, while spinning a 50 yo 1 HP 3 phase Century brand we burnt off an air compressor and I put fresh bearings in. $50 for a pair of them, $28 for fresh bearings all around. Can't beat that with a stick. Could use an inch smaller pulley on the motor shaft but its also doing well at 8 or 9 HZ if programmed to not burn the motor up at low speeds. Get that relay hooked up, the vfd swapped and tuned, the table cleaned up and I'll take some pix for John Dammeyer. Sorta fugly, but I think its working. :) 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
