Can you confirm whether not your machine has homing switches? And if so, does it home automatically?
If it homes, to what corner does the machine home?
If it does home, can you run this in Console after homing?
$I
$$
$#
?
If it doesn’t home, can you physically move the laser head to the front-left of the machine before turning on? After turning on, connect to LightBurn and run this in Console:
$I
$$
$#
?
Return the output of those commands in a reply here please.