Printing in the negative zones

LightBurn Hardware Compatibility
1

Hi all. I have searched but do not get an answer.
I have a Arduino GRBL setup and using the Universal GCode tool the laser moves in the correct direction when I jog. I have not needed to reverse XY pins and home works.

I have stop switches Top Right for XY. My home is top Right.

The machine is 230mm x 150mm and prints on other Apps in the - (Negative space (0 to -230 and 0 to -150).

Here is my problem.

  1. I home fine and draw a shape. So the laser is top right. I then burn and it smahes the head. The laser is heading for Positive locations.

This is what I have noticed.

  1. In LightBurn the XY direction is swapped.
  2. Home works as planned.

Here is what I need to know.

  1. How can I make Lightburn print in the Negative space? I see the Grid is posative and thats the issue. Most CNC print in the Negative space.

To confirm, I know how to use G10 L2 X-250 Y-250 ect.

I am seeing if there is a better way.

Any help appreciated!

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