Greetings all; Has anyone experience with these 3 phase closed loop stepper motor kits?
I intend to motorize the main axis of the BS-1 I bought, by putting the motor behind the rear of it, with a 2 stage belt drive with a fair amount of gear reduction by running a belt drive from a smaller count pulley on the motor to a rather larger pulley on the center of its tilt axis, thence thru a second belt to engage the chuck drive stick out of the lower right corner of it. That way I won't have to screw with belt changes if the tilt changes. I am guessing that will be, with a 3NM motor, more that enough holding torque to cut a gear or 4. Tooth counts will be determined by what will clear when I actually get it up on the table where I can work on it. It weighs more than I can lift at nearly 90 kg with the chuck mounted, even without the chuck its too much. So I'm also building a skyhook and electric hoist to lift it with. If it ever quits raining. Any warnings about these 3 phase closed loop motors I should be aware of? I'm in need of a smaller, smoother one on the Sheldons Z, that 1600oz-in shakes and rattles that whole 1500 lb lathe when its running at a puny 15 ipm, so I've made an offer on 2 of these 3NM nema 23's. 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-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
