I don't know what your big-picture goal is, but you can drive a normal two-phase stepper in continuous, non-stepping mode. In this mode they are just like servomotors. Then they attach a rotary encoder. So step-skipping is not going to happen as they don't step.
Stepperonline sells these all setup and ready to go as drop-in replacements for normal steppers. The servo-loop is closed inside the driver electronics so the computer just sees the usual sep/dir interface. On Sat, Dec 3, 2022 at 2:02 PM gene heskett <ghesk...@shentel.net> wrote: > Greetings to all the other stepper experts here. > > I got the double ended motors for an Ender5+ today. > > Other than the paint job and wiring, leads instead of sockets, they look > identical to the motor currently on the Ender5+ for Y drive. No > perceived improvement. > > I can probably program klipper to drive then both with a separate 5160 > driver per motor, get another bracket, mount then butt to butt with one > coil reversed, locked together with a 5mm to 5mm coupling,to maintain X > squareness making them into one motor with twice the torque. > > The big IF is whether the drivers always power up at the same state > before any move is commanded, I don't want x square to be a random > driver power up fight. > > Its either make that work, or figure out some sort of a backlashless > bevel gear from one of the 3 phase motors that are all nema-23's so far. > That would be ideal if the fault line could be used to freeze things if > it ever loses home by even one step. Something the 3 phase nema 23's can > do automatically. > > Best antibacklash is not a bevel gear, but likely a jackshaft from the > nema 23 to a short shaft where the nem-17 motor is now. Even a 1NM 3 > phase would be 200% of the torque of whats in there now. > > Which way, two nema-17 motors, or a nema 23 and a jackshaft with 30 > tooth pulleys, would you guys opt for? > > Thanks for your thoughts! > > 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, 1940) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > Genes Web page <http://geneslinuxbox.net:6309/> > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
