On Tue, 21 Feb 2012 16:33:00 -0500, you wrote:
>Quick test this afternoon, duty cycle sucks, need MUCH narrower slots. >Since I don't have anything narrower for bits that will cut that brass, I >believe I will make another identical brass wheel and mount it slightly out >of time to narrow the slot, there is room for it in the opto's. Hi Gene, I used OPB916BZ opto's http://www.optekinc.com/datasheets/OPB916.PDF slots are 3mm with 3mm space between, all slots 6mm long apart from index which is 12. Index opto is fitted nearer to wheel. Slots start 2mm in from edge of wheel. Diameter of wheel was made to suit those params. I get a super square pulse with even mark/space - checked on the scope and they are as close to perfect as doesn't matter :) Wheel is not enclosed and there is no jitter from either daylight or fluorescent tube above lathe. Steve Blackmore -- ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
