Which version of GRBL did you go with?
Dont recall where it show in UGS but it will display in Easel Machine Inspector.
That’s my current configuration with “grbl-1.1f.20170801”
$0=15
$1=25
$2=0
$3=1
$4=0
$5=0
$6=0
$10=1
$11=0.010
$12=0.002
$13=0
$20=0
$21=1
$22=1
$23=3
$24=50.000
$25=1000.000
$26=20
$27=10.000
$30=1000
$31=0
$32=0
$100=80.108
$101=80.108
$102=1600.000
$110=8000.000
$111=8000.000
$112=500.000
$120=500.000
$121=250.000
$122=250.000
$130=1245.000
$131=1245.000
$132=70.000
Maybe the first boot was wrong.
2017 seems like 10 years ago…that’s the same version I run on my machines.
This sounds like a classic homing issue where the machine is just hitting the limit switch and not disengaging.
A couple of quick things to check, since it’s an Alarm 8 (Hard Limit) during homing-
- Check the $22 setting- Make sure Homing is actually enabled. It should be $22=1.
- Check the limit switch state- In your console, type ? and look at the status report. The Pn: part (for Probes/Pins) should NOT show X, Y, or Z when the machine is away from the switches. If it does show a pin name, you have a switch wired backwards (needs to be Normally Open, or NO) or a wiring issue causing a constant signal.
If the switches are triggering, but not backing off, it’s almost always that initial wiring check.