----- Original Message ----- > From: "Ed" <[email protected]> > To: [email protected] > Sent: Tuesday, January 24, 2017 9:49:12 AM > Subject: Re: [Emc-users] nema 24 motors. > > On 01/23/2017 11:45 PM, Gene Heskett wrote: > > Greetings all; > > > > I see some "Nema 24" motors at quite reasonable prices showing up > > on > > fleabay, > > SNIP > > Now, I don't believe this is going to help with the resonance > > stalls I am > > getting at about 30 ipm, so I'm thinking of building a viscous > > damper to > > fit on the rear of this puppy. But unlike the ones on my hf > > micromill, > > which are long steel spools carrying a 2+ inch stack of heavy > > fender > > washers with elastomer sheets between the washers, which are true > > shock > > absorbers as the resonance is killed by the frictional losses as > > the > > washers walk on the talcum covered elastomer, but I don't have room > > for > > a 2+" stack of fender washers in this spot. 5/8" axially at best. > > SNIP > > Cheers, Gene Heskett > > > RANT MODE ON > > Why in this day of cheap encoders, small ebay servo motors, and good > inexpensive servo drives does any one even use stepper motors? > > Dampers, resonance issues, lost steps, stalls, only 30 IPM? Why? > > Gene, don't stay on the dark side! Go to servo's and don't look back, > you will never regret it. > > RANT MODE OFF > > ----deflates----- > > Ed. >
That's easy to answer, because Gene doesn't like to do things the easy way, if he isn't cutting corners and scrambling like mad to make things work he isn't happy. If he had bought every thing and all it went together and all worked right the first time, he'd probably have to sell it all and start over. ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
