I did a quick shaky video with my cell phone.

https://youtu.be/NOfAEI5TMxY

John


> -----Original Message-----
> From: andrew beck [mailto:andrewbeck0...@gmail.com]
> Sent: November-08-22 3:03 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] triggering the mesa card encoder index pulse
> 
> Hey guys it got us sussed!  Working perfectly.
> 
> I'll upload a video and hope to make a guide on the forums for the next guy
> 
> On Wed, 9 Nov 2022, 12:02 John Dammeyer, <jo...@autoartisans.com> wrote:
> 
> > Looking at:
> >
> > https://linuxcnc.org/docs/html/gcode/m-code.html#mcode:m66
> >
> > Should there not be a Q in front of the 10 in your line below for a
> > timeout of 10 seconds?
> > M66 P0 L2 10
> >
> > If I were to do this then I have this in my hal filev which shows which
> > pin is encoder index:
> > #IO Connections for P1
> > #DBn.m_PMDX_Jn.m  I/O   Pri. func  Sec. func       Chan      Pin func
> >   Pin Dir
> > # P2.13_J11.7       33  IOPort     QCount           1        Quad-IDX
> >   (In)       Encoder-Index
> >
> > Then in the hal file I add:
> > net spindle-index-in  motion.digital-in-00  <= hm2_7i92.0.gpio.033.in
> >
> > Finally the G-Code would look like this?
> > S10 M3
> > M66 P0 L2 Q10
> > M5
> > T__  tool change...
> >
> > Or have I missed something?
> > Thanks
> > John
> >
> > > -----Original Message-----
> > > From: andrew beck [mailto:andrewbeck0...@gmail.com]
> > > Sent: November-08-22 2:20 AM
> > > To: Enhanced Machine Controller (EMC)
> > > Subject: Re: [Emc-users] triggering the mesa card encoder index pulse
> > >
> > > Hey andy.
> > >
> > >  I was just having a play and I can actually just sense the input-index
> > pin
> > > directly.  With
> > > M66 P0 L2 10
> > > I rotate spindle at 5rpm and wait until sensor changes state
> > >
> > > Then stop.
> > >
> > >
> > > In my case this is a proxy switch.  Not a encoder so I don't have to
> > worry
> > > about missing it.
> > >
> > > Anyway I tried that and it's orientating fine at the moment.
> > >
> > > And very simple compared to m19 stuff.
> > >
> > > I'll finish it tomorrow and might make a video to show you guys.
> > >
> > > On Tue, 8 Nov 2022, 23:15 andy pugh, <bodge...@gmail.com> wrote:
> > >
> > > > On Tue, 8 Nov 2022 at 04:50, andrew beck <andrewbeck0...@gmail.com>
> > wrote:
> > > >
> > > > >
> > > > > i am using the tristate bit but getting a bit confused on how it
> > works
> > > > >
> > > >
> > > > It only drives the output to the input when enable is true.
> > > >
> > > > You want to set the indes-enable pin high, and then stop writing to it
> > so
> > > > that the rest of the system can do its thing.
> > > >
> > > > So set input permanently high.
> > > > Then toggle enable on and off.
> > > > Then rotate the spindle until index-enable is driven false.
> > > >
> > > > --
> > > > atp
> > > > "A motorcycle is a bicycle with a pandemonium attachment and is
> > designed
> > > > for the especial use of mechanical geniuses, daredevils and lunatics."
> > > > ? George Fitch, Atlanta Constitution Newspaper, 1912
> > > >
> > > > _______________________________________________
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> > > > Emc-users@lists.sourceforge.net
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> > > >
> > >
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> >
> >
> >
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> >
> 
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