On Tuesday 20 October 2020 16:04:16 Dave Cole wrote: > What about using a common KB Electronics DC drive? > Woot.com (Amazon discount site) is selling one for $89. I think they > can commonly be found on Ebay as well. > > Dave
I haven't got $99 in the 5, 3 different types I'm playing with. Technology does move on and this stuff just keeps getting cheaper. The mesa spinx1 to interface the audio boards costs more than any one of these. But at the expense of 2 more output pins, the olimex board can run a 40 volt, 30 amp motor. Thats a 1.2 kw servo. Even for this job, serious overkill. > On 10/19/2020 5:22 PM, grumpy--- via Emc-users wrote: > > On Sun, 18 Oct 2020, John Dammeyer wrote: > >> Way back in 2003 I started a project to control the surplus tread > >> mill motors I had acquired. At that time I was still just casting > >> parts for making my Gingery Lathe and thought about making my own > >> DC Servo motor controller. > >> > >> http://www.autoartisans.com/MotorDrives/MOTOR1-5.JPG > >> > >> The first prototype had a bunch of problems and then regular paying > >> work took over, I needed the bench space and never revived the > >> project. http://www.autoartisans.com/MotorDrives/REVA0059.JPG > >> > >> The controller was the MC33030 > >> > >> http://www.autoartisans.com/MotorDrives/MC33030-D.pdf > >> > >> Knowing what I know now I'd never use this device but back then... > > > > i have a 1 hp treadmill motor i need a controller for > > in view of you past experience what would you use now Using a treadmill controller is, IMO, a great way to shoot yourself in the foot, or worse. Think outside that box, far better stuff at lower cost is available today. > > > > _______________________________________________ > > 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 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) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
