You can use a cutting blade for a grinder they work awesome. So your not actually grinding. It's slicing. We go through 100s. It's a 5min job
On Mon, 18 Oct 2021, 18:38 Gene Heskett, <ghesk...@shentel.net> wrote: > On Sunday 17 October 2021 22:34:35 Ralph Stirling wrote: > > > I just got a great deal on three 750w brushless servos and drives to > > upgrade my cnc mill. They have the same face dimensions, but the > > shafts are 5mm longer than the old brush servos. There was no > > clearance between the motor shaft and ball screw inside the coupler, > > so I need shorten the 32mm long 19mm diam shafts by 5mm. Can this be > > done without damage to the motor from heat or vibration? I don't want > > to have to pull the ball screws. > > > > Thanks, > > -- Ralph > > > 5+mm is a lot to grind off, probably sawing might be quicker. Either has > the possibility of brinneling the motor bearings enough to shorten their > life. And I'd power the motors to use their holding torque while doing > that. > > And you could make 5+mm thick spacers and use the motors as is by > drilling and tapping the mount holes so the motors are rotated 45 > degrees. I doubt they would care. > > I would do the latter, much easier on the motors bearings. > > 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/gene> > > > _______________________________________________ > 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
