On Saturday 18 February 2017 05:44:03 Sven Wesley wrote: > Hi all! > > Long time no see, been busy working. :) > I bought a CNC engraver, really high quality but it has an old Dos(!) > PC. Here comes a retrofit! > The 60 000 RPM VFD is well documented, the drivers are not. The PC > port looks like a parallel port but is labelled 'com 2'. I guess the > drivers are step/dir. Anyone with a nice idea how to figure it out? > I will try to see if the factory have any manuals left.
That might be your best bet. A closeup pix of one of the motors, including the label might help someone to recognized them. The one I can see most of in this pix sure looks a lot like a servo to me. Too long for most steppers. The driver box may be quite a complex construction in that event. Com 2 may well be an rs232, the original specs did use a db-25 connector. You may have to put a scope on it to measure the bit time to determine the baud rate. Or if the pc still lives, it may be in the autoexec.bat. Somewhere in this midden heap, I've a book on the older serial ports. No idea if it might be helpfull, but I'd be curious to see how they shoved all the data it takes to run 3 motors and a spindle thru what might be a 9600 baud serial port. And I can't find it in this room, which means its in the basement, and it was mix-mastered by contractors from Basement Systems last spring as the dug a ditch for drainage and routed it to a sump for automatic pumping out.. And because they needed access to all the walls, everything is piled 6 feet deep in the middle. And no one knows which box contains what. 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
