On Monday 24 November 2014 20:19:41 Leonardo Marsaglia did opine And Gene did reply: > 2014-11-24 21:56 GMT-03:00 andy pugh <[email protected]>: > > People list them on eBay, cheaper than Digikey. > > http://www.ebay.com/itm/ATS667LSGTN-T-Gear-Tooth-Sensor-IC-/151062958 > > 754 As a randomly-chosen example > > I guess they should sell them here too. I will check tomorrow. > > It's tempting also ,in my case, to machine a 360 teeth gear and use > these sensors only. If they do the trick it's a good solution too.
360, a pulse every degree? if you can only track it to 20 kilohertz, your circuit is in trouble by about 58 rpm. I am using a 50 cycle/turn encoder, and the 5i25 is still loafing at 1500 revs. But I would think it would have to work a little harder watching a 360 cycle ABX. As far as usefulness for threading, the 50 cycle seems at least adequate. I have used every thread I have cut with it except the one I saw being started well at about 150 rpm, then shoved the slider over to about 700. Instant mess. 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> US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS ------------------------------------------------------------------------------ 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=157005751&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
