I am running a 48ish tooth gear with gear tooth sensors - it counts up to 10k with mesa.
http://electronicsam.com/images/greenmachine/20190401_150213.jpg http://electronicsam.com/images/greenmachine/20190403_175734.jpg sam On Sun, Mar 27, 2022 at 4:27 PM dave engvall <dengv...@charter.net> wrote: > At high rpm a resolver may make more sense ... and more $$. Depends. ?? > > Dave > > On 3/27/22 2:03 PM, ken.stra...@gmail.com wrote: > > Gene, do you have a part number for your high RPM Omron encoder? Maybe I > can > > snag one... > > > > -----Original Message----- > > From: gene heskett <ghesk...@shentel.net> > > Sent: March 27, 2022 4:49 PM > > To: Enhanced Machine Controller (EMC) <emc-users@lists.sourceforge.net> > > Subject: Re: [Emc-users] Homebuilt encoder > > > > On Sunday, 27 March 2022 15:45:48 EDT ken.stra...@gmail.com wrote: > >> If you want spindle positioning (for more accurate probing of > >> alignment for tool changes for examples) you'll need the encoder to > >> follow the position at all speeds. Are there high RPM capable absolute > >> encoders at a reasonable price? > > The one I have on the rear end of that 1hp motor, an Omron 1000 ppr, > cost me > > $21 on fleabay 6 years ago. Its a differential model I'm converting to > ttl > > in a pair of rs485 to ttl interfaces that cost about $2 each, driving a > 5i25 > > card. NO optics in that path. Absolute it is not, but if the encoder > tracks, > > who cares. > > > > 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, 1940) > > If we desire respect for the law, we must first make the law respectable. > > - Louis D. Brandeis > > > > > > > > > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
