Isolated, as in opto isolator on the bob ? Thank you On Jun 6, 2017 12:03 PM, "Jon Elson" <el...@pico-systems.com> wrote:
> On 06/06/2017 09:31 AM, jeremy youngs wrote: > >> Good day folks. Im waiting for ebay to drop this at my door >> https://www.google.com/url?sa=t&source=web&rct=j&url=http:// >> spectechind.com/Documents/KB/KBMG-212D-manual.pdf&ved=0ahUKE >> wjM6aSAtqnUAhUG3IMKHcT_CUgQFggqMAA&usg=AFQjCNGFBaUXQadurcokp >> yECREPoUQtv-A&sig2=Pi3K5iam1Y-9UdVNt5mrew >> . It calls for a tach/generator my google foo shows them to be very cost >> prohibitive. I have so far only setup stepper system. I am using this as a >> spindle drive on my mill 90 v treadmill motor. I want to be able to rigid >> tap. My question is can I just use an encoder and have Linux cnc control >> the position ? I think so but before I order an encoder I would like to >> know . >> > Big problem with KB drives is they are NOT isolated from the power mains. > So, your source of the speed command must be isolated. Tach generators are > really just DC brush motors wound to be free of voltage ripple. Maxon > makes some nice small motors that make excellent tachs. You can often find > them surplus for under $10. > > 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 > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ 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
