Yep exactly Todd. And now I get to play with it. But everything is basically mechanicallly new as it is so low hrs. Just hoping I can reuse the heidenhain inverter drive for spindle and servo motors. I think that is still OK. And it looks like it can take a pwm signal to control it.
Might need some heidenhain EXE boxes for the incremental sin cos encoders also. And hopefully I can power it up. It would be awesome it I don't have to buy new chinese servo drives and a vfd this time! Anyway I'll have heaps of aiding you guys. Ps Todd. I ended up tuning my chinese servo drives using halscope to see the changes in following error and velocity error using the encoder feedback to linuxcnc from drives. Only changing PIV values in the actual drive, halscope pid was not running only counting pulses for position feedback. And it worked mint. Thanks for all the help. It Cuts a 110mm circle 0.005mm. out of round now at a decent speed. I'm happy as. On Tue, Jun 23, 2020, 4:11 AM Todd Zuercher <to...@pgrahamdunn.com> wrote: > More likely, they hired some tech to work on it at $300/hr, he worked on > it for a week +parts and he couldn't figure it out, then they got fed up > hired another guy, same story and then wrote the machine off. > > Todd Zuercher > P. Graham Dunn Inc. > 630 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > -----Original Message----- > From: andy pugh <bodge...@gmail.com> > Sent: Monday, June 22, 2020 11:57 AM > To: Enhanced Machine Controller (EMC) <emc-users@lists.sourceforge.net> > Subject: Re: [Emc-users] max motor size that a 8i20 can control > > [EXTERNAL EMAIL] Be sure links are safe. > > On Mon, 22 Jun 2020 at 16:52, andrew beck <andrewbeck0...@gmail.com> > wrote: > > > Marcus. Nah that s just how it was. It is a very low hr machine. > > With a heidenhain control. They spent 25k trying to fix the control > > and then asked me if I wanted to buy it > > > > Did you offer to take 25k off them to retrofit it? > > (Though if Heidenhain couldn't fix it, I would be wondering what might be > wrong. 25k would be a whole new controller, wouldn't it? ) > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is designed > for the especial use of mechanical geniuses, daredevils and lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1912 > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
