On Sunday 05 July 2015 13:05:27 Marius Liebenberg wrote: > ------ Original Message ------ > From: "Gene Heskett" <[email protected]> > To: [email protected] > Sent: 2015-07-05 18:48:03 > Subject: Re: [Emc-users] Index pulse on 5i25 with 7i76 > > >On Sunday 05 July 2015 07:28:07 Marius Liebenberg wrote: > >> I have the above installed on my lathe and I am having problems > >> with getting threads cut. In a previous discussion someone > >> mentioned that their lathe just sits and waits for something when > >> using G76. I have the same. So I put Halscope on the > >> 5i25.encoder.index-input to see what is coming out. Not surprising > >> I only get an index pulse every couple of turns and it is erratic > >> to say the least. > >> I have a 1:1 AMT201 encoder on the spindle. > >> Is there anything special to be done to get the index pulse to be > >> present? > > > >I'd replace that funkity encoder, forthwith, if not sooner. > > What's wrong with the encoder Gene?
I was premature, and hadn't realized you were looking at it at the 5i25's output. With a halmeter on p3-pin13 IIRC, you should be able to see it as you roll the spindle by hand. The P3-13 is of course the pin my prob-rfx2 uses, your 7i77 might have it someplace else. Better yet, a fast analog scope on the BoB input might be worth looking at. Fast being anything north of 20 mhz. Also, I had forgotten about the spindle-at-speed signal which can also be a problem if I forget to switch the spindle input scale according to the current backgear position. But I am like everyone else, why the heck is it switching to the G17 mode? That would seem to me to have to be fixed first, then the rest of this checked. One nasty thought thats lurking in the back of my mind is the editor you are using to write the gcode, if its not in uft-8 mode, is there a possibilty it has added some 16 or 32 bit characters it is not showing you? Admittedly thats a far stretch, but failing other ways to check it, it does come to mind. I like geany, but its capable of handling more than plain old 7 bit ascii text too with the right settings. So I apologize for jumping the gun with that comment, Marius, it was out of line and not consistent with what you wrote about your checking. 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> ------------------------------------------------------------------------------ Don't Limit Your Business. Reach for the Cloud. GigeNET's Cloud Solutions provide you with the tools and support that you need to offload your IT needs and focus on growing your business. Configured For All Businesses. Start Your Cloud Today. https://www.gigenetcloud.com/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
