Homing an axis moves away from home switch!

Does the machine have separate homing and limit switches?
If yes, the home_latch_velocity is set reversed, so add or remove - in front of the value.

I don't understand why it does not work with just the stepconf config.

Why is LinuxCNC so stupid?


Why does it move away from zero and toward 20 while homing????!!!

1. because you told it so.
2. it is not.
3. because you told it so.
-
Try changing "home latch direction" in StepConf for each axis that needs it.

LinuxCNC should have some auto config option where you just let it run and it figures out where the home switchs are and everything.

To be able to do that for any of the huge variety of machines that LinuxCNC can control, it would require the software to be SENTIENT!!!
Nothing humanity can create can do that the way you think.
Try AI
-
Off topic:
AI = absolutely not artificial intelligence, not in the slightest, just the name being misused.
Same with:
Calling a liquid "GAS"
Calling "football" a sport that does not use feet.
Etc, etc.

You could sure make all of this SO much easier by simply providing the basic information you have been asked for.

Is it okay to set it as just "Home X"?

Yes it is, granted you set the soft limits correctly in the wizard or in the ini file.