> From: p...@wpnet.us > To: emc-users@lists.sourceforge.net > Date: Mon, 27 Oct 2014 15:16:59 -0500 > Subject: [Emc-users] Lathe conversion with Mesa 5i25 / 7i76 > > I'm back at work on my lathe conversion, reviewing what I have so far, > cleaning up documentation, etc. I've run into an issue / question, hopefully > I'm just missing something. > > I have my spindle encoder connected to the Mesa 7i76 TB3 encoder inputs, > which seems to be ok (still have to test operation). I'm looking to connect > my MPG encoder somewhere on the 7i76, and I though that could be done on > regular inputs due to it's relatively low frequency operation. Looking in > PNCConf I don't seem to see an option to put the MPG encoder elsewhere. Am I > missing something? Is it supported but not in PNCConf? > > Thanks, > > Pete C. >
It is supported but not by pncconf. I believe you have two options. If the firmware is right, I believe there is a different 5i25/7i76 mode that has an MPG input. That MPG will be specific pins though (check the manual form Mesa) This is a nice option as there is a x1 mode just for MPGs. The other option is to load a software encoder counter and use any GPIO inputs to supply it (even a spare parport) I'm not sure if you would need a base thread or if the servo thread would be fast enough - but I would bet the servo thread is fast enough. Surely others can give you more specific answers. Chris M ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users