Andy, Joint.0.motor-pos-fb is tied to 7i76 stepgen.00.position-fb
Getting video of the situation now Phil T. The Feral Engineer Check out my LinuxCNC tutorials, machine builds and other antics at www.youtube.com/c/theferalengineer On Sun, Apr 4, 2021, 11:04 AM Feral Engineer <theferalengin...@gmail.com> wrote: > That's the thing, though. The behavior is completely arbitrary based on > where the machine is powered up. > > When I use the mechanical switches, it'll find them, back away and zero is > right there. Works perfect. > > As soon as I add the index pulse, it just takes off and goes back to where > it came from on startup. It makes no sense to me, especially since I > eliminated the prox sensors from being energized until after the mechanical > switches were triggered. It's gotta be pulling a value from somewhere. Even > the documentation doesn't talk about this weird behavior, considering > everything else is set to zero. > > I'm on my way to go get the information Andy requested. > > Phil T. > The Feral Engineer > > Check out my LinuxCNC tutorials, machine builds and other antics at > www.youtube.com/c/theferalengineer > > On Sun, Apr 4, 2021, 10:51 AM Scott Harwell via Emc-users < > emc-users@lists.sourceforge.net> wrote: > >> Phil, >> I agree with you. >> >> The one event that scared me the most was setting up a new AB 8400 >> retrofit. AB improved the "G" software to go to zero after home >> (undocumented).The machine was a P&W Wolverine with three spindle heads X >> 120" Y 50" Z 24" and 40HP. The true thrill of Z axis trying to put the face >> of the spindle flat on the table with a test bar in it will stop your >> heart.Z home is near the top of Z stroke, and you define it as required. Do >> not assume home is zero, it is a preset value from Zero, or it should >> be.(Home is where the marker pulse is) >> Scott H >> >> On Sunday, April 4, 2021, 9:08:01 AM CDT, Feral Engineer < >> theferalengin...@gmail.com> wrote: >> >> But home should be referenced from the switch and reset with the proxy as >> the index pulse. I don't see this as normal behavior. Homing against the >> switch then moving to some arbitrary position defeats the purpose of >> having >> a homing sequence. If you watch my video, "zero" is purely dependent on >> where the machine is when you start the software. All of my ini settings >> are zero. Between the two reference returns I show in my video, nothing >> changed but the position the machine was in when the software was started. >> This behavior is not present when only using the mechanical switch. >> >> Phil T. >> The Feral Engineer >> >> Check out my LinuxCNC tutorials, machine builds and other antics at >> www.youtube.com/c/theferalengineer >> >> On Sun, Apr 4, 2021, 4:45 AM Frank Tkalcevic <fr...@franksworkshop.com.au >> > >> wrote: >> >> > What I'm seeing (and I'm not a linuxcnc expert) looks correct. After >> the >> > homing sequence it jumps to HOME. This is documented here (0.1.3.7) >> > http://linuxcnc.org/docs/2.4/html/config_ini_homing.html >> > >> > >> > >> > >> > -----Original Message----- >> > From: Feral Engineer [mailto:theferalengin...@gmail.com] >> > Sent: Sunday, 4 April 2021 1:58 PM >> > To: EMC developers; Enhanced Machine Controller (EMC) >> > Subject: [Emc-developers] Home_use_index issue revisited >> > >> > Finally getting back around to messing with this mechanical/prox home >> > issue. See attached video link. I show what it is doing and explain >> what I >> > want it to do. >> > >> > Thanks in advance for your help >> > >> > https://youtu.be/XVz6v2YNXJQ >> > >> > Phil T. >> > The Feral Engineer >> > >> > Check out my LinuxCNC tutorials, machine builds and other antics at >> > www.youtube.com/c/theferalengineer >> > >> > _______________________________________________ >> > Emc-developers mailing list >> > emc-develop...@lists.sourceforge.net >> > https://lists.sourceforge.net/lists/listinfo/emc-developers >> > >> > >> > >> > _______________________________________________ >> > Emc-users mailing list >> > Emc-users@lists.sourceforge.net >> > https://lists.sourceforge.net/lists/listinfo/emc-users >> > >> >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
