Help! Alarm:9 How do I home newly installed (MAC, Lightburn) Atomstack A5M40? No limit switches?

Hello, I’m new to this and trying to run my Atomstack A5 M40This is from my Mac (MacBook Pro Catalina 10.15.7. I have homing problems:

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


Grbl 1.1 [‘$’ for help]

[MSG:‘$H’|‘$X’ to unlock]

[MSG:Caution: Unlocked]


what do I need to do?

If you do not have limit switches then you don’t use the homing button or do “Auto-home on startup”.

Instead, you’ll have to do a manual homing process:

  1. Make sure machine is off
  2. Move laser head slowly to front-left of machine
  3. Turn on machine

The start location should register as 0,0.