Igor Chudov wrote: > Guys, call me stupid, but why can't the OP run his lathe off of that DC > spindle motor? All he needs is a rectifier bridge to run it at constant > speed. > > Well, a 10 Hp DC motor will draw a LOT of current at start-up. Yes, there is no reason he can't do that, and there are DC motor controls that should handle it. But, it is at the upper end of the range of available controls. Myself, I'd BUILD a DC controller, maybe a bank of power MOSFETs and a home-made inductor.
The DC motor may have much wider speed/torque capabilities that an induction motor, too. Jon ------------------------------------------------------------------------------ What You Don't Know About Data Connectivity CAN Hurt You This paper provides an overview of data connectivity, details its effect on application quality, and explores various alternative solutions. http://p.sf.net/sfu/progress-d2d _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
