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I wish y'all had been around when I first configured my machine... 20 years ago.

After Tommy's first reply, I did some reading, and realized that since I have X and Y limits, configuring them as homing inputs as well would be trivial. And so it was, plus or minus a "+" or "-", here and there.

I think I never thought there was any point to having a true home, and really, I've gotten by without it until now. I hit the limit switches when jogging reasonably often, but they're soft-mounted, so it's not a big deal.

In any case, I'm fully configured with home+limits on X and Y now, and I have proper soft limits configured, so I'm all set. <Another high five!>

Secondary question: I don't have a Z+ limit switch. My mill is so slow I'd really have to not be paying attention for the carriage to get close to the stepper. A lower limit would be nice, but I really don't understand how that could work. My spindle is a router, so the bit length varies a lot. Is there any way to configure this to work? I see people say that they don't bother with a lower Z limit, and just rely on a soft limit there, but what would you set it to? Is there something about "real" spindles that I don't know? Are the bits always the same length?

I've played around with the wizard a lot and actually put together a good configuration. Unfortunately, LinuxCNC won't start, and after a day of back and forth, I'm pretty frustrated because the AI ​​seems to constantly assume an RTAI kernel and, despite my reminder, can't quite figure out how to use the RT kernel. Attached are the .ini and custom.hal files. How do I modify the files to make it run, or where can I get the specific information?

THANKS YOU tommylight that worked fine, I was able to switch the pin to Y limit only and cleared the
HOME_SEARCH_VEL = -0.0
HOME_LATCH_VEL = -0.0
HOME_FINAL_VEL = 0.0
No home action and the Y limit errors out when it moves to the limit.  Ran a G-code fine too.
I'm very happy you guys are great.
Now to move on with the rotary build.

Yes, in this case, I would probably just leave it disconnected.
(unless you need to disable the drives so that the shafts are freewheeling)

If you have a free step/dir output on the 7I78 that can be used as a 5V
enable output