I am trying to setup a 3018. I have set the origin to be bottom Left and the red and green makers are located in the bottom left corner of the screen. When I home the machine it will move to the correct position, Z is at the top, X is to the far Left, and Y is to the back of the machine. I did have to set the X direction pin invert to true.
Now for the problem the first thing i noted is that after home and pressing the get position key what returns is X=-299.00, Y=-1.00 and z=-1.00 I should think that X should read -1.00 like the other two. also when I try to use the Set Laser Position tool, Y Moves in the wrong direction and crashes in to the back of the machine ignoring the hard stop limit switch. the 3018 run correctly on author software such as LaserGRBL.
This is worth review if you haven’t already. 
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