On Wed, 29 Oct 2014, Pete Matos wrote: > Date: Wed, 29 Oct 2014 13:18:49 -0400 > From: Pete Matos <petefro...@gmail.com> > Reply-To: "Enhanced Machine Controller (EMC)" > <emc-users@lists.sourceforge.net> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Subject: Re: [Emc-users] Lathe conversion with Mesa 5i25 / 7i76 > > Pete I will take your word on it you are the guru here. I honestly don't > know. Would you recommend keeping it and trying to get a drive to fit it, > I would need to find another similar motor on ebay. Besides I am starting > to hijack this poor guys thread here. I am open to whatever will be the > best for the machine in the end and what is easiest for me to get running. > Peace > > Pete
If you had the original drives and motors I would use them. even if you just had both motors it might have been worth finding drives, but with just one oddball motor, probably better to start from scratch > > > On Wed, Oct 29, 2014 at 1:16 PM, Pete Matos <petefro...@gmail.com> wrote: > >> Andy, >> Honestly man I have no idea. As I said there ARE NO DRIVES LOL.. It >> is gutted. I only have a single X axis motor and some wiring in this >> beast. The rest was sacrificed to the parts gods on ebay by the previous >> owner I guess. I posted the information on the motor I got from an >> engineer at Parker yesterday on the IRC. He said it was a servomotor, I >> asked him if it was a DC servomotor and he just answered it's a servomotor >> whatever that means. I have some information on it but as I said I wanted >> to have matched motors and drives on both axes so if I needed to buy >> another one of these same motors it would probably cost a fortune. I think >> my best bet is to probably sell this X motor and buy two motor and drive >> combos like I did on the CIncinatti build. That has turned out to be a good >> decision for me and it made things a helluva lot simpler. I like simple. >> Peace >> >> Pete >> >> >> On Wed, Oct 29, 2014 at 1:08 PM, andy pugh <bodge...@gmail.com> wrote: >> >>> On 29 October 2014 16:55, <p...@wpnet.us> wrote: >>>> If it has old resolvers I'd just replace those with some new >>> inexpensive encoders >>> >>> I would suggest that that would be a downgrade. Buying resolvers new >>> would be needlessly extravagant, they cost a fortune, but if you >>> already have them then they are superior to encoders. >>> >>> In this case the existing drives probably use the resolvers for >>> commutation too. (which might be a problem, as the Mesa Resolver card >>> expects to be providing the excitation. However the drive quite >>> possibly won't notice if the excitation is swapped to the LinuxCNC >>> interface hardware.). >>> Pete: Do you know if the drives use Hall sensors for commutation, use >>> the resolvers for commutation, and pass-through the sine/cosine, or >>> use the resolver and pass out synthetic encoder pulses? >>> >>> -- >>> atp >>> If you can't fix it, you don't own it. >>> http://www.ifixit.com/Manifesto >>> >>> >>> ------------------------------------------------------------------------------ >>> _______________________________________________ >>> 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 >> > > > > -- > 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 > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
