Another big problem is the sheer weight of the rotor. You would have a heck of a job getting any kind of acceleration out of it. If you want to start hacking stuff around, get some treadmill motors or similar dc motors and set them up as DC servos. You'll get a much better result. I use treadmill motors on my Bridgeport with great success.
Les Kirk Wallace wrote: > > > I think alternators are very inefficient even as alternators. Using them > as motors seems less than productive considering that there are cheap > alternatives. All of the alternators I have worked on have had cast > finger cores so that eddy currents must get pretty high with a load. I > think these are meant to operate at a high load just long enough to > replace the charge used up during engine starting, and then mostly idle > while running lights, etcetera. I have noticed some new alternators, > that are smaller than normal which might have a more efficient > construction, maybe so they can run under a higher load all the time , > and to save space. > -------------- > Kirk > http://www.wallacecompany.com/machine_shop/ > ------------------------------------------------------------------------------ Check out the new SourceForge.net Marketplace. It is the best place to buy or sell services for just about anything Open Source. http://p.sf.net/sfu/Xq1LFB _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
