Re: [CAD_CAM_EDM_DRO] Stepper Dissasembly

Hi Chris,

Yes! only 300 oz/in from this 20+ year old motor! Mine is M093-FD11,
300 oz/in, 2.8v, 5.5A, this pair was run bipolar, with a driver/P.S. box
that was bigger then a 17" monitor! Times change!

Alan KM6VV


Chris Stratton wrote:

>
> Quoting from the brochure included with an old "M" series
> NEMA 34 Slo-Syn that was still in it's unopened box:
>
> "Motors should not be taken apart. Removing the rotor will reduce the
> output toruqe 5% or more when the motor is reassembled and the
> permanent magnet will pick up steel chips"
>
> Sounds like there are consequences, but it may be worthwhile to risk
> them in circumstances where dissasembly seems necessary.
>
> Next question: can a triple stack size 34 motor really be only 300
> oz-in? M093-FD-339 - 300 oz in, 4.4v, 3.5A. Looking in the current
> catalog, all the motors of this size and approximate wattage have the
> same rating, 450 uni/550 bipoar for both windings on. I could imagine
> the design improving somewhat since these left the factory, but 50%???
>
> Won't really know till I hook them up to a drive. And yes, it is
> going to be tempting to go in and rewire to run them bipolar-parallel.
>
> Chris