On Saturday, February 21, 2015 11:11:36 AM Kirk Wallace wrote: > On 02/21/2015 07:29 AM, Peter C. Wallace wrote: > > On Sun, 22 Feb 2015, Erik Christiansen wrote: > > > > snip > > > >> On a 3D printer, free of cutting forces, I figure microstepping > >> would be OK at constant velocity, but rubbery under strong > >> acceleration. At least it's only full steps that you can > >> permanently lose. > > > > Actually step motors lose steps in multiples of 4 full steps > > (a full pole slip = 360 electrical degrees, a full step is 90 > > electrical degrees) > > In case it might be handy, considering stepper design reminded me of a > link I sometimes go back to to refresh my understanding: > http://homepage.cs.uiowa.edu/~jones/step/physics.html > http://homepage.cs.uiowa.edu/~jones/step/#abstract
A bible like pair of documents.. Pretty well covers it IMO. We should all bookmark that page FFR. Thanks Kirk. 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> ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=190641631&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
