Ortur Master 2 X-Y Jerking

I received an Ortur Laser Master 2 as a gift. I got it all assembled and I had it working with LightBurn, doing some training with test material. I have been having some intermittent issues with the Ortur not homing correctly, or framing the project correctly. I’ve turned off the option to have the system “auto home” at startup to try to correct the issue with the Alarm 9, but the system still alarms, and the head unit will start jerking back and forth on the Y axis. Framing is also not working on any project and the system can’t seem to find or know where the head is at any time, even if I manually place it in the home position. I’ve reset all of the wiring, ensuring the ground wires are set. Here is the control console output from the device. What am I missing?

ok

Homing

Ortur Laser Master 2 Ready!

OLF 142.

Grbl 1.1h [‘$’ for help]

[MSG:Check Limits]

[MSG:‘$H’|‘$X’ to unlock]

ALARM:9

Homing fail. Could not find limit switch within search distance. Defined as 1.5 * max_travel on search and 5 * pulloff on locate phases.

ok

Ortur Laser Master 2 Ready!

OLF 142.

Grbl 1.1h [‘$’ for help]

[MSG:Check Limits]

[MSG:‘$H’|‘$X’ to unlock]

[MSG:Caution: Unlocked]

ok

$$

$0=2.000

$1=25

$2=0

$3=0

$4=0

$5=0

$6=0

$10=3

$11=0.050

$12=0.002

$13=0

$20=1

$21=1

$22=1

$23=7

$24=600.000

$25=3000.000

$26=100

$27=3.000

$30=1000

$31=0

$32=1

$33=500.000

$50=0

$51=0.000

$52=0.000

$100=80.000

$101=80.000

$102=80.000

$110=9000.000

$111=9000.000

$112=1200.000

$120=2200.000

$121=1800.000

$122=2500.000

$130=400.000

$131=430.000

$132=1.000

ok

So, going back through all of the wiring connections I found that one of the Y-axis connectors had started backing out of the male connection seating. Closer inspection shows that there is no “locking” mechanisms on these connectors so they seem to have a habit of walking themselves out. This by far is a very poor design in my book.

Nice troubleshooting. Did this resolve the issue for you then?