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 ------------------------------------------------------------------------------ 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
