Has anyone found a solution for Z Homing issue on the A-70 Max? It homes with $HZ command but not when hitting the home button or initial connection to lightburn. It’s a little frustrating, you would think the only difference between the A-70 Max and the A-70 is the XY size but apparently its not.
Z-axis is enabled in settings and when I enter the $22 command, I get $22=1. I did notice though when I disable the Z-axis, it is still $22=1.
$22 is Home cycle or no Home cycle. That disable Z in Lightburn only tells Lightburn to not send Zaxis commands. It has nothing to do with the Home cycle.
If it does not Home using the $H command, that is a function of the laser controller board. What happens if you try $HXYZ ? You may be able to use the Custom GCode feature of Lightburn.
Thanks, I did read after I posted that $22 is just whether homing is on.
$HZ works. That’s what has me a bit confused. Just really odd that the A70 will autohome the z axis but A70 Max doesn’t. From what I’ve read others A70 Max owners have the same issue.
For now I’ll just add a macro button for homing
You are correct. The A70 Pro Auto homes the Z axis but the A70 Max does not. Here’s some instructions i did on how to do it with a Macro. And use the Autofocus
$HZ is the command to Home the Z axis
This is a pdf file so download then change the extension from .txt to .pdf
How to Use Autofocus in Atomstack A70 Pro and A70 Max.txt (78.5 KB)
Here’s some information on an strange issue I had with my A70. I had an issue with the touch screen display were it was changing settings seemingly at random. I would turn off auto home and it would be unable turn it back on. Or turn off Flame Detection and would be unable to turn it back on. Touch screen seemed to not be working at times. Pressing the screen would not do anything.
Seems the issue was with the way the circuit board for the touch screen was mounted. I first opened the case and removed the circuit board from the case. When i tried the touch screen when it was out of the case everything worked fine. When i put the circuit board back in the case the touch screen would not work correctly. Determined the issue was with the mounting screws holding the touch screen into the case. If the mounting screws are too tight it presses the sides of the case onto the touch screen which causes issues. The fix was to install the circuit board mounting screws just tight enough to hold the circuit board in place without pressing the sides of the circuit board to the mounting case. Then after I confirmed all the settings on the touch screen were correct, just to be safe I disconnected the cable from the touch screen to the controller because i don’t really use the touch screen. If i need to change a setting i can always plug it back in.
This is just a firmware difference then. The axes that are homed by $H are defined in the firmware and can’t be changed by any (standard) parameter. There were quite a few complaints about the automatic Z homing, so I guess you are lucky that it’s not included. The macro solution is the only way to solve it if you don’t want to fiddle deeper into settings, custom grbl configuration etc.