On Mon, 10 Feb 2014, Russell Brown wrote: > Date: Mon, 10 Feb 2014 18:18:30 +0000 (GMT) > From: Russell Brown <russ...@lls.lls.com> > Reply-To: "Enhanced Machine Controller (EMC)" > <emc-users@lists.sourceforge.net> > To: emc-users@lists.sourceforge.net > Subject: [Emc-users] Spindle Tacho > > > There are quite a few examples of adding Spindle Tacho displays to Axis > but I can't find much about how one detects the spindle speed in a > useful manner without some fancy encoder. > > My mill spindle already has a 'slotted' disk for the inbuilt tacho so I > was thinking of sticking a simple slotted phototransistor thingie on the > same disk...... but what do I do then?
In a nutshell: Wire the photo transistor output to a parallel port input pin and add an encoder counter component to your hal file. set the encoder component into counter mode and net the encoder components velocity pin to your display component. > > All the spindle speed stuff I've found talks about encoders and the only > likely candidate in pnc/stepconf is the Digital Input 0-4 but my > Google-fu is weak and I can't join the dots. > > Any pointers? > > -- > Regards, > Russell > -------------------------------------------------------------------- > | Russell Brown | MAIL: russ...@lls.com PHONE: 01780 471800 | > | Lady Lodge Systems | WWW Work: http://www.lls.com | > | Peterborough, England | WWW Play: http://www.ruffle.me.uk | > -------------------------------------------------------------------- > > ------------------------------------------------------------------------------ > Android™ apps run on BlackBerry®10 > Introducing the new BlackBerry 10.2.1 Runtime for Android apps. > Now with support for Jelly Bean, Bluetooth, Mapview and more. > Get your Android app in front of a whole new audience. Start now. > http://pubads.g.doubleclick.net/gampad/clk?id=124407151&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ Android™ apps run on BlackBerry®10 Introducing the new BlackBerry 10.2.1 Runtime for Android apps. Now with support for Jelly Bean, Bluetooth, Mapview and more. Get your Android app in front of a whole new audience. Start now. http://pubads.g.doubleclick.net/gampad/clk?id=124407151&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
