On Mon, 12 May 2014, Marius Liebenberg wrote: > Date: Mon, 12 May 2014 16:48:52 +0200 > From: Marius Liebenberg <[email protected]> > Reply-To: "Enhanced Machine Controller (EMC)" > <[email protected]> > To: "Enhanced Machine Controller (EMC)" <[email protected]> > Subject: [Emc-users] Spindle Encoder with Parport > > Will it be possible for me to read an encoder signal on my lathe spindle > with a normal parport input. I will fit a Hall effect Sensor or an > Interrupted light source signal. The max RMP will be 2000 and I might > have 10 slots or more. > > -- > > Regards /Groete > > Marius D. Liebenberg > +27 82 698 3251 > +27 12 743 6064 > QQ 1767394877 >
2000 RPM is only 33.3 RPS (30 ms per turn) so 10 slots (50/50 light dark) would generate a 1.5 ms low, 1.5 ms high square wave. This should be easily readable with a modest base thread rate. > ------------------------------------------------------------------------------ > "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE > Instantly run your Selenium tests across 300+ browser/OS combos. > Get unparalleled scalability from the best Selenium testing platform available > Simple to use. Nothing to install. Get started now for free." > http://p.sf.net/sfu/SauceLabs > _______________________________________________ > Emc-users mailing list > [email protected] > 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. ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
