I would have space for the 125mm motor. I wouldn’t have space for the stepper driver though. Nor for the DC power supply that it needs. Or is it line powered?
I need about 5000rpm, and I’m hoping to cap the cost at around $100 > On Apr 24, 2023, at 5:24 PM, gene heskett <ghesk...@shentel.net> wrote: > > On 4/24/23 17:41, Thaddeus Waldner wrote: >> HI, >> I have an application where I need a NEMA 23-size 80-120 watt brushless DC >> motor. The machine housing doesn’t have space for a 100w DC 24v power >> supply, so I would like to use a controller and motor that runs at line >> voltage. >> Does anyone know of a small BLDC/PMAC/Synchronous AC motor that is designed >> to run at about 150v coil voltage? >> Motors this size/voltage are apparently quite common in kitchen appliances >> that use pumps or fans, but I cannot seem to find a plain motor with output >> shaft. > How much length have you got? A 1 newton meter 2 or 3 phase stepper/servo is > about 80mm behind the flange, and 3 newton meter is about 125mm behind the > flange, both have 8mm shafts, and run on cl57 sized drivers for the 2 phase > versions, can turn more than 2k revs continuously but hot, stopped virtually > zero power and heat unless they are holding up a 300kg knee on a mill. They > get to where linuxcnc tells them to go or shuts linuxcnc down in its tracks, > the closest I've ever seen to a motor that Just Works. I'm using two of them > on my Sheldon 11x54 lathe, shutdown wired up, tested, has never happened > while making swarf. If suitably microstepped, /16 seems to be popular, > accuracy is cosiderably less than a micron. Whats not to like? > > I also have 2 of them on a 6040 gantry mill, a one nm on the z cuz the std > motor can only slowly lift the heavier spindle motor, and a 3nm driving a 5/1 > worm which drives the B axis chuck to carve the hard maple vise screws I am > making. > > They are servo's, priced at stepper prices. If they lose home for any reason, > lcnc is stopped before the work is wrecked. Can your much more costly > servo's do that? > > The tech we use marches on. Take care and stay well Thaddeous. >> Thanks, >> Thaddeus Waldner >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users > > 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, 1940) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > Genes Web page <http://geneslinuxbox.net:6309/> > > > > _______________________________________________ > 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
