It has the original steppers and the much newer Microkinetics drivers. The spindle motor is ~1.5HP I believe, I have it on a 2HP Hitachi VFD.
Did you mean your machine has DC brush type servos with resolvers (old)? If it has brushless AC servos (newer) it wouldn't have resolvers. In either case I'd stick with the original servos and drives if they are functional since they are probably well matched to the machine. If it has old resolvers I'd just replace those with some new inexpensive encoders. The MESA 5i25/7i77 servo card combo would probably work well, I have that card set waiting for a conversion on my much larger CNC mill after I'm done with the lathe. The mill has a Dynapath control currently that works fine, but has small memory so I just drip feed it serial from a PC currently. ------Original Mail------ From: "Pete Matos" <petefro...@gmail.com> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Sent: Wed, 29 Oct 2014 12:47:15 -0400 Subject: Re: [Emc-users] Lathe conversion with Mesa 5i25 / 7i76 Hey thats awesome... I just looked it up and it is actually very similar to my machine. I just bought a used HH Roberts Standard Modern 14x40 CNC lathe. Did your machine come with stepper motors? Mine came with DC brushless servos and resolvers but I am thinking I will swap motors and drivers to brand new stuff here instead of screwing with the old stuff. What HP is your spindle motor I need one of those too. Nice to meetcha! Peace Pete On Wed, Oct 29, 2014 at 12:42 PM, <p...@wpnet.us> wrote: > It's a Harrison Trainer manual/CNC 280. It previously had a conversion > from it's original dead controls to Microkinetics stuff and now I'm going > to LinuxCNC with the MESA 5i25/7i76 set, retaining the MK stepper drives > since they're fine. I'm doing it as a strictly CNC conversion since I have > other manual lathes. I installed a new Hitachi VFD to drive the spindle > which is working nicely. > > > > ------Original Mail------ > From: "Pete Matos" <petefro...@gmail.com> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Sent: Wed, 29 Oct 2014 12:37:30 -0400 > Subject: Re: [Emc-users] Lathe conversion with Mesa 5i25 / 7i76 > > What kind of lathe are you converting out of curiosity? I just bought a > CNC lathe to retrofit and I plan to use mesa cards again. Good luck with > your build. Peace > > Pete > > > On Wed, Oct 29, 2014 at 12:33 PM, <p...@wpnet.us> wrote: > > > I've messed with this a bit and don't have it working yet. Attached is my > > current hal file hacked together from PNCConf generated bits, bits from > > docs and manual bits (don't laugh, I'll clean it up once I get everything > > working). The steps are all set to 0.1 just to ensure that even if the > > selection isn't selecting the one I think I'd at least get visible > motion. > > Below is the summary of the hardware configuration. > > > > The pendant MPG is a basic 100ppr 5V MPG. I've validated it's output with > > my 'scope (haven't got the hang of halscope yet). It is wired with A and > B > > outputs connected to the MESA 7i76 GPIO #16 and #17. > > > > The pendant has two 4 pos rotary switches as follows: > > > > Axis select > > 1 - Off - n.c. > > 2 - X - MESA 7i76 GPIO #20 > > 3 - Z - MESA 7i76 GPIO #21 > > 4 - Aux - MESA 7i76 GPIO #22 > > > > Step select > > > > 1 - 0.1 - MESA 7i76 GPIO #24 > > 2 - 0.01 - MESA 7i76 GPIO #25 > > 3 - 0.001 - MESA 7i76 GPIO #26 > > 4 - 0.0001 - MESA 7i76 GPIO #27 > > > > Using halcmd show I've validated the switch inputs are working properly. > > > > Any idea what may be wrong? > > > > ------Original Mail------ > > From: <p...@wpnet.us> > > To: <emc-users@lists.sourceforge.net> > > Sent: Mon, 27 Oct 2014 16:16:15 -0500 > > Subject: Re: [Emc-users] Lathe conversion with Mesa 5i25 / 7i76 > > > > ------Original Mail------ > > From: "Peter C. Wallace" <p...@mesanet.com> > > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net > > > > Sent: Mon, 27 Oct 2014 14:03:16 -0700 PDT > > Subject: Re: [Emc-users] Lathe conversion with Mesa 5i25 / 7i76 > > > > ... > > > > > There's a brief mention on page 18 in the mode options > > > > That is indeed brief. Well, I've got a direction now and a bunch of docs > > to read through and try to mesh. Hopefully I'll have it working this > > evening :) > > > > > > > > > ------------------------------------------------------------------------------ > > _______________________________________________ > > 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 > > > > > > -- > Pete Matos > A and N Precision and Fabrication > Maryville, Tennessee > 865-236-8996 > > ------------------------------------------------------------------------------ > _______________________________________________ > 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 > -- Pete Matos A and N Precision and Fabrication Maryville, Tennessee 865-236-8996 ------------------------------------------------------------------------------ _______________________________________________ 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
