Yeah no actually they are indeed brushed DC servos with encoders. I might actually keep them but I am missing the Z motor so might as well get both new. The machine I bought gutted of the original control and motor. I did use the 5i25/7i77 combo on my Cincinatti Arrow 500 VMC retrofit. Excellent stuff. I will use the 5i25/7i77 combo I have as well for the new lathe. My machine came with a 7.5 HP motor apparently but it was an option base motor was 5hp. I am not sure which size motor I will get but it will probably depend on what kind of deal I can get on it. Gonna run a Hitachi WJ200 VFD like I did on the Cincinatti most likely. Cannot wait to see this monster make some swarf. Right now I am stripping and repainting a good bit of the sheetmetal as some jackhole mopped some cheap paint on it with a brush. Aah well if it was beautiful I probably would have paid a bunch more for it I guess LOL Good luck with your build. Peace
Pete On Wed, Oct 29, 2014 at 12:55 PM, <p...@wpnet.us> wrote: > 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 > -- 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
