On Tuesday 24 January 2017 10:48:46 Todd Zuercher wrote: > ----- Original Message ----- > > > From: "Ed" <ate...@mwt.net> > > To: emc-users@lists.sourceforge.net > > 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. >
Now now Todd, be nice, its not quite that bad. :) I'm practical in that it would only be sold if there was enough profit to build another just like it for less, kay? ;-) 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) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
