On Tuesday 24 January 2017 12:37:19 Jon Elson wrote: > 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, in fairly high torque ratings, so I bought one 10 days > > back, since I need a stronger one, with perhaps a damper on it on my > > x axis. I bought the 8 wire model so I can drive it in parallel > > where I ought to be able to get 3k rpms out of it. > > 3K RPM from a stepper? Why are you doing this? That sounds > like servo territory. > > > What do the vibration engineers in this crowd think of this idea? > > Your damper pretty much has to work. Some steppers don't > need very much damping at all to kill the resonance. > Or, a properly adjusted Gecko 201 driver will pretty much > get rid of all resonance issues. They have a pot you tune > for minimum hum at a certain speed, and it compensates out > the residual excitation of the resonance. > > Jon
Thats the first time in a decade or more that anybody ever talked about how that works, thanks. In the advertising, it reads like salesman-speak. And I always take 2 steps back when I read that language. Part of my personal spam filter I guess. :) That and a wee bit of Missouri in my DNA. :) 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
