On Saturday 24 November 2012 21:05:58 James Boulton did opine: > Has anyone on list used a stepper as an encoder like this: > > http://home.clear.net.nz/pages/joecolquitt/stepper_as_encoder.html > > James
I breadboarded a similar circuit, feeding the coils of a small 24v stepper into a comparator with a very slight hysteresis, perhaps 5mv of feedback so that stopped the status was still known. On the scope, it appeared to work quite well at speeds even slower than I might turn the shaft with a 2" spinner knob. I was going to use it as a pendant to drive the mill, but it seems as if I have miss-placed my round tuit. pcb for the lm339's and 4 motors have been occupying a box in the basement for about 2 years now. I was going to mount them on a box so x was on the right side, y was on the front, with z and (a|b|c) on the top. Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> is up! Excellent day for drinking heavily. Spike the office water cooler. ------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
